drivers/net/wireless/wavelan.c

   1 /*
   2  *      WaveLAN ISA driver
   3  *
   4  *              Jean II - HPLB '96
   5  *
   6  * Reorganisation and extension of the driver.
   7  * Original copyright follows (also see the end of this file).
   8  * See wavelan.p.h for details.
   9  *
  10  *
  11  *
  12  * AT&T GIS (nee NCR) WaveLAN card:
  13  *      An Ethernet-like radio transceiver
  14  *      controlled by an Intel 82586 coprocessor.
  15  */
  16
  17 #include "wavelan.p.h"          /* Private header */
  18
  19 /************************* MISC SUBROUTINES **************************/
  20 /*
  21  * Subroutines which won't fit in one of the following category
  22  * (WaveLAN modem or i82586)
  23  */
  24
  25 /*------------------------------------------------------------------*/
  26 /*
  27  * Translate irq number to PSA irq parameter
  28  */
  29 static u8 wv_irq_to_psa(int irq)
  30 {
  31         if (irq < 0 || irq >= ARRAY_SIZE(irqvals))
  32                 return 0;
  33
  34         return irqvals[irq];
  35 }
  36
  37 /*------------------------------------------------------------------*/
  38 /*
  39  * Translate PSA irq parameter to irq number
  40  */
  41 static int __init wv_psa_to_irq(u8 irqval)
  42 {
  43         int i;
  44
  45         for (i = 0; i < ARRAY_SIZE(irqvals); i++)
  46                 if (irqvals[i] == irqval)
  47                         return i;
  48
  49         return -1;
  50 }
  51
  52 /********************* HOST ADAPTER SUBROUTINES *********************/
  53 /*
  54  * Useful subroutines to manage the WaveLAN ISA interface
  55  *
  56  * One major difference with the PCMCIA hardware (except the port mapping)
  57  * is that we have to keep the state of the Host Control Register
  58  * because of the interrupt enable & bus size flags.
  59  */
  60
  61 /*------------------------------------------------------------------*/
  62 /*
  63  * Read from card's Host Adaptor Status Register.
  64  */
  65 static inline u16 hasr_read(unsigned long ioaddr)
  66 {
  67         return (inw(HASR(ioaddr)));
  68 }                               /* hasr_read */
  69
  70 /*------------------------------------------------------------------*/
  71 /*
  72  * Write to card's Host Adapter Command Register.
  73  */
  74 static inline void hacr_write(unsigned long ioaddr, u16 hacr)
  75 {
  76         outw(hacr, HACR(ioaddr));
  77 }                               /* hacr_write */
  78
  79 /*------------------------------------------------------------------*/
  80 /*
  81  * Write to card's Host Adapter Command Register. Include a delay for
  82  * those times when it is needed.
  83  */
  84 static void hacr_write_slow(unsigned long ioaddr, u16 hacr)
  85 {
  86         hacr_write(ioaddr, hacr);
  87         /* delay might only be needed sometimes */
  88         mdelay(1);
  89 }                               /* hacr_write_slow */
  90
  91 /*------------------------------------------------------------------*/
  92 /*
  93  * Set the channel attention bit.
  94  */
  95 static inline void set_chan_attn(unsigned long ioaddr, u16 hacr)
  96 {
  97         hacr_write(ioaddr, hacr | HACR_CA);
  98 }                               /* set_chan_attn */
  99
 100 /*------------------------------------------------------------------*/
 101 /*
 102  * Reset, and then set host adaptor into default mode.
 103  */
 104 static inline void wv_hacr_reset(unsigned long ioaddr)
 105 {
 106         hacr_write_slow(ioaddr, HACR_RESET);
 107         hacr_write(ioaddr, HACR_DEFAULT);
 108 }                               /* wv_hacr_reset */
 109
 110 /*------------------------------------------------------------------*/
 111 /*
 112  * Set the I/O transfer over the ISA bus to 8-bit mode
 113  */
 114 static inline void wv_16_off(unsigned long ioaddr, u16 hacr)
 115 {
 116         hacr &= ~HACR_16BITS;
 117         hacr_write(ioaddr, hacr);
 118 }                               /* wv_16_off */
 119
 120 /*------------------------------------------------------------------*/
 121 /*
 122  * Set the I/O transfer over the ISA bus to 8-bit mode
 123  */
 124 static inline void wv_16_on(unsigned long ioaddr, u16 hacr)
 125 {
 126         hacr |= HACR_16BITS;
 127         hacr_write(ioaddr, hacr);
 128 }                               /* wv_16_on */
 129
 130 /*------------------------------------------------------------------*/
 131 /*
 132  * Disable interrupts on the WaveLAN hardware.
 133  * (called by wv_82586_stop())
 134  */
 135 static inline void wv_ints_off(struct net_device * dev)
 136 {
 137         net_local *lp = netdev_priv(dev);
 138         unsigned long ioaddr = dev->base_addr;
 139
 140         lp->hacr &= ~HACR_INTRON;
 141         hacr_write(ioaddr, lp->hacr);
 142 }                               /* wv_ints_off */
 143
 144 /*------------------------------------------------------------------*/
 145 /*
 146  * Enable interrupts on the WaveLAN hardware.
 147  * (called by wv_hw_reset())
 148  */
 149 static inline void wv_ints_on(struct net_device * dev)
 150 {
 151         net_local *lp = netdev_priv(dev);
 152         unsigned long ioaddr = dev->base_addr;
 153
 154         lp->hacr |= HACR_INTRON;
 155         hacr_write(ioaddr, lp->hacr);
 156 }                               /* wv_ints_on */
 157
 158 /******************* MODEM MANAGEMENT SUBROUTINES *******************/
 159 /*
 160  * Useful subroutines to manage the modem of the WaveLAN
 161  */
 162
 163 /*------------------------------------------------------------------*/
 164 /*
 165  * Read the Parameter Storage Area from the WaveLAN card's memory
 166  */
 167 /*
 168  * Read bytes from the PSA.
 169  */
 170 static void psa_read(unsigned long ioaddr, u16 hacr, int o,     /* offset in PSA */
 171                      u8 * b,    /* buffer to fill */
 172                      int n)
 173 {                               /* size to read */
 174         wv_16_off(ioaddr, hacr);
 175
 176         while (n-- > 0) {
 177                 outw(o, PIOR2(ioaddr));
 178                 o++;
 179                 *b++ = inb(PIOP2(ioaddr));
 180         }
 181
 182         wv_16_on(ioaddr, hacr);
 183 }                               /* psa_read */
 184
 185 /*------------------------------------------------------------------*/
 186 /*
 187  * Write the Parameter Storage Area to the WaveLAN card's memory.
 188  */
 189 static void psa_write(unsigned long ioaddr, u16 hacr, int o,    /* Offset in PSA */
 190                       u8 * b,   /* Buffer in memory */
 191                       int n)
 192 {                               /* Length of buffer */
 193         int count = 0;
 194
 195         wv_16_off(ioaddr, hacr);
 196
 197         while (n-- > 0) {
 198                 outw(o, PIOR2(ioaddr));
 199                 o++;
 200
 201                 outb(*b, PIOP2(ioaddr));
 202                 b++;
 203
 204                 /* Wait for the memory to finish its write cycle */
 205                 count = 0;
 206                 while ((count++ < 100) &&
 207                        (hasr_read(ioaddr) & HASR_PSA_BUSY)) mdelay(1);
 208         }
 209
 210         wv_16_on(ioaddr, hacr);
 211 }                               /* psa_write */
 212
 213 #ifdef SET_PSA_CRC
 214 /*------------------------------------------------------------------*/
 215 /*
 216  * Calculate the PSA CRC
 217  * Thanks to Valster, Nico <NVALSTER@wcnd.nl.lucent.com> for the code
 218  * NOTE: By specifying a length including the CRC position the
 219  * returned value should be zero. (i.e. a correct checksum in the PSA)
 220  *
 221  * The Windows drivers don't use the CRC, but the AP and the PtP tool
 222  * depend on it.
 223  */
 224 static u16 psa_crc(u8 * psa,    /* The PSA */
 225                               int size)
 226 {                               /* Number of short for CRC */
 227         int byte_cnt;           /* Loop on the PSA */
 228         u16 crc_bytes = 0;      /* Data in the PSA */
 229         int bit_cnt;            /* Loop on the bits of the short */
 230
 231         for (byte_cnt = 0; byte_cnt < size; byte_cnt++) {
 232                 crc_bytes ^= psa[byte_cnt];     /* Its an xor */
 233
 234                 for (bit_cnt = 1; bit_cnt < 9; bit_cnt++) {
 235                         if (crc_bytes & 0x0001)
 236                                 crc_bytes = (crc_bytes >> 1) ^ 0xA001;
 237                         else
 238                                 crc_bytes >>= 1;
 239                 }
 240         }
 241
 242         return crc_bytes;
 243 }                               /* psa_crc */
 244 #endif                          /* SET_PSA_CRC */
 245
 246 /*------------------------------------------------------------------*/
 247 /*
 248  * update the checksum field in the Wavelan's PSA
 249  */
 250 static void update_psa_checksum(struct net_device * dev, unsigned long ioaddr, u16 hacr)
 251 {
 252 #ifdef SET_PSA_CRC
 253         psa_t psa;
 254         u16 crc;
 255
 256         /* read the parameter storage area */
 257         psa_read(ioaddr, hacr, 0, (unsigned char *) &psa, sizeof(psa));
 258
 259         /* update the checksum */
 260         crc = psa_crc((unsigned char *) &psa,
 261                       sizeof(psa) - sizeof(psa.psa_crc[0]) -
 262                       sizeof(psa.psa_crc[1])
 263                       - sizeof(psa.psa_crc_status));
 264
 265         psa.psa_crc[0] = crc & 0xFF;
 266         psa.psa_crc[1] = (crc & 0xFF00) >> 8;
 267
 268         /* Write it ! */
 269         psa_write(ioaddr, hacr, (char *) &psa.psa_crc - (char *) &psa,
 270                   (unsigned char *) &psa.psa_crc, 2);
 271
 272 #ifdef DEBUG_IOCTL_INFO
 273         printk(KERN_DEBUG "%s: update_psa_checksum(): crc = 0x%02x%02x\n",
 274                dev->name, psa.psa_crc[0], psa.psa_crc[1]);
 275
 276         /* Check again (luxury !) */
 277         crc = psa_crc((unsigned char *) &psa,
 278                       sizeof(psa) - sizeof(psa.psa_crc_status));
 279
 280         if (crc != 0)
 281                 printk(KERN_WARNING
 282                        "%s: update_psa_checksum(): CRC does not agree with PSA data (even after recalculating)\n",
 283                        dev->name);
 284 #endif                          /* DEBUG_IOCTL_INFO */
 285 #endif                          /* SET_PSA_CRC */
 286 }                               /* update_psa_checksum */
 287
 288 /*------------------------------------------------------------------*/
 289 /*
 290  * Write 1 byte to the MMC.
 291  */
 292 static void mmc_out(unsigned long ioaddr, u16 o, u8 d)
 293 {
 294         int count = 0;
 295
 296         /* Wait for MMC to go idle */
 297         while ((count++ < 100) && (inw(HASR(ioaddr)) & HASR_MMC_BUSY))
 298                 udelay(10);
 299
 300         outw((u16) (((u16) d << 8) | (o << 1) | 1), MMCR(ioaddr));
 301 }
 302
 303 /*------------------------------------------------------------------*/
 304 /*
 305  * Routine to write bytes to the Modem Management Controller.
 306  * We start at the end because it is the way it should be!
 307  */
 308 static void mmc_write(unsigned long ioaddr, u8 o, u8 * b, int n)
 309 {
 310         o += n;
 311         b += n;
 312
 313         while (n-- > 0)
 314                 mmc_out(ioaddr, --o, *(--b));
 315 }                               /* mmc_write */
 316
 317 /*------------------------------------------------------------------*/
 318 /*
 319  * Read a byte from the MMC.
 320  * Optimised version for 1 byte, avoid using memory.
 321  */
 322 static u8 mmc_in(unsigned long ioaddr, u16 o)
 323 {
 324         int count = 0;
 325
 326         while ((count++ < 100) && (inw(HASR(ioaddr)) & HASR_MMC_BUSY))
 327                 udelay(10);
 328         outw(o << 1, MMCR(ioaddr));
 329
 330         while ((count++ < 100) && (inw(HASR(ioaddr)) & HASR_MMC_BUSY))
 331                 udelay(10);
 332         return (u8) (inw(MMCR(ioaddr)) >> 8);
 333 }
 334
 335 /*------------------------------------------------------------------*/
 336 /*
 337  * Routine to read bytes from the Modem Management Controller.
 338  * The implementation is complicated by a lack of address lines,
 339  * which prevents decoding of the low-order bit.
 340  * (code has just been moved in the above function)
 341  * We start at the end because it is the way it should be!
 342  */
 343 static inline void mmc_read(unsigned long ioaddr, u8 o, u8 * b, int n)
 344 {
 345         o += n;
 346         b += n;
 347
 348         while (n-- > 0)
 349                 *(--b) = mmc_in(ioaddr, --o);
 350 }                               /* mmc_read */
 351
 352 /*------------------------------------------------------------------*/
 353 /*
 354  * Get the type of encryption available.
 355  */
 356 static inline int mmc_encr(unsigned long ioaddr)
 357 {                               /* I/O port of the card */
 358         int temp;
 359
 360         temp = mmc_in(ioaddr, mmroff(0, mmr_des_avail));
 361         if ((temp != MMR_DES_AVAIL_DES) && (temp != MMR_DES_AVAIL_AES))
 362                 return 0;
 363         else
 364                 return temp;
 365 }
 366
 367 /*------------------------------------------------------------------*/
 368 /*
 369  * Wait for the frequency EEPROM to complete a command.
 370  * I hope this one will be optimally inlined.
 371  */
 372 static inline void fee_wait(unsigned long ioaddr,       /* I/O port of the card */
 373                             int delay,  /* Base delay to wait for */
 374                             int number)
 375 {                               /* Number of time to wait */
 376         int count = 0;          /* Wait only a limited time */
 377
 378         while ((count++ < number) &&
 379                (mmc_in(ioaddr, mmroff(0, mmr_fee_status)) &
 380                 MMR_FEE_STATUS_BUSY)) udelay(delay);
 381 }
 382
 383 /*------------------------------------------------------------------*/
 384 /*
 385  * Read bytes from the Frequency EEPROM (frequency select cards).
 386  */
 387 static void fee_read(unsigned long ioaddr,      /* I/O port of the card */
 388                      u16 o,     /* destination offset */
 389                      u16 * b,   /* data buffer */
 390                      int n)
 391 {                               /* number of registers */
 392         b += n;                 /* Position at the end of the area */
 393
 394         /* Write the address */
 395         mmc_out(ioaddr, mmwoff(0, mmw_fee_addr), o + n - 1);
 396
 397         /* Loop on all buffer */
 398         while (n-- > 0) {
 399                 /* Write the read command */
 400                 mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl),
 401                         MMW_FEE_CTRL_READ);
 402
 403                 /* Wait until EEPROM is ready (should be quick). */
 404                 fee_wait(ioaddr, 10, 100);
 405
 406                 /* Read the value. */
 407                 *--b = ((mmc_in(ioaddr, mmroff(0, mmr_fee_data_h)) << 8) |
 408                         mmc_in(ioaddr, mmroff(0, mmr_fee_data_l)));
 409         }
 410 }
 411
 412
 413 /*------------------------------------------------------------------*/
 414 /*
 415  * Write bytes from the Frequency EEPROM (frequency select cards).
 416  * This is a bit complicated, because the frequency EEPROM has to
 417  * be unprotected and the write enabled.
 418  * Jean II
 419  */
 420 static void fee_write(unsigned long ioaddr,     /* I/O port of the card */
 421                       u16 o,    /* destination offset */
 422                       u16 * b,  /* data buffer */
 423                       int n)
 424 {                               /* number of registers */
 425         b += n;                 /* Position at the end of the area. */
 426
 427 #ifdef EEPROM_IS_PROTECTED      /* disabled */
 428 #ifdef DOESNT_SEEM_TO_WORK      /* disabled */
 429         /* Ask to read the protected register */
 430         mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_PRREAD);
 431
 432         fee_wait(ioaddr, 10, 100);
 433
 434         /* Read the protected register. */
 435         printk("Protected 2:  %02X-%02X\n",
 436                mmc_in(ioaddr, mmroff(0, mmr_fee_data_h)),
 437                mmc_in(ioaddr, mmroff(0, mmr_fee_data_l)));
 438 #endif                          /* DOESNT_SEEM_TO_WORK */
 439
 440         /* Enable protected register. */
 441         mmc_out(ioaddr, mmwoff(0, mmw_fee_addr), MMW_FEE_ADDR_EN);
 442         mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_PREN);
 443
 444         fee_wait(ioaddr, 10, 100);
 445
 446         /* Unprotect area. */
 447         mmc_out(ioaddr, mmwoff(0, mmw_fee_addr), o + n);
 448         mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_PRWRITE);
 449 #ifdef DOESNT_SEEM_TO_WORK      /* disabled */
 450         /* or use: */
 451         mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_PRCLEAR);
 452 #endif                          /* DOESNT_SEEM_TO_WORK */
 453
 454         fee_wait(ioaddr, 10, 100);
 455 #endif                          /* EEPROM_IS_PROTECTED */
 456
 457         /* Write enable. */
 458         mmc_out(ioaddr, mmwoff(0, mmw_fee_addr), MMW_FEE_ADDR_EN);
 459         mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_WREN);
 460
 461         fee_wait(ioaddr, 10, 100);
 462
 463         /* Write the EEPROM address. */
 464         mmc_out(ioaddr, mmwoff(0, mmw_fee_addr), o + n - 1);
 465
 466         /* Loop on all buffer */
 467         while (n-- > 0) {
 468                 /* Write the value. */
 469                 mmc_out(ioaddr, mmwoff(0, mmw_fee_data_h), (*--b) >> 8);
 470                 mmc_out(ioaddr, mmwoff(0, mmw_fee_data_l), *b & 0xFF);
 471
 472                 /* Write the write command. */
 473                 mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl),
 474                         MMW_FEE_CTRL_WRITE);
 475
 476                 /* WaveLAN documentation says to wait at least 10 ms for EEBUSY = 0 */
 477                 mdelay(10);
 478                 fee_wait(ioaddr, 10, 100);
 479         }
 480
 481         /* Write disable. */
 482         mmc_out(ioaddr, mmwoff(0, mmw_fee_addr), MMW_FEE_ADDR_DS);
 483         mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_WDS);
 484
 485         fee_wait(ioaddr, 10, 100);
 486
 487 #ifdef EEPROM_IS_PROTECTED      /* disabled */
 488         /* Reprotect EEPROM. */
 489         mmc_out(ioaddr, mmwoff(0, mmw_fee_addr), 0x00);
 490         mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_PRWRITE);
 491
 492         fee_wait(ioaddr, 10, 100);
 493 #endif                          /* EEPROM_IS_PROTECTED */
 494 }
 495
 496 /************************ I82586 SUBROUTINES *************************/
 497 /*
 498  * Useful subroutines to manage the Ethernet controller
 499  */
 500
 501 /*------------------------------------------------------------------*/
 502 /*
 503  * Read bytes from the on-board RAM.
 504  * Why does inlining this function make it fail?
 505  */
 506 static /*inline */ void obram_read(unsigned long ioaddr,
 507                                    u16 o, u8 * b, int n)
 508 {
 509         outw(o, PIOR1(ioaddr));
 510         insw(PIOP1(ioaddr), (unsigned short *) b, (n + 1) >> 1);
 511 }
 512
 513 /*------------------------------------------------------------------*/
 514 /*
 515  * Write bytes to the on-board RAM.
 516  */
 517 static inline void obram_write(unsigned long ioaddr, u16 o, u8 * b, int n)
 518 {
 519         outw(o, PIOR1(ioaddr));
 520         outsw(PIOP1(ioaddr), (unsigned short *) b, (n + 1) >> 1);
 521 }
 522
 523 /*------------------------------------------------------------------*/
 524 /*
 525  * Acknowledge the reading of the status issued by the i82586.
 526  */
 527 static void wv_ack(struct net_device * dev)
 528 {
 529         net_local *lp = netdev_priv(dev);
 530         unsigned long ioaddr = dev->base_addr;
 531         u16 scb_cs;
 532         int i;
 533
 534         obram_read(ioaddr, scboff(OFFSET_SCB, scb_status),
 535                    (unsigned char *) &scb_cs, sizeof(scb_cs));
 536         scb_cs &= SCB_ST_INT;
 537
 538         if (scb_cs == 0)
 539                 return;
 540
 541         obram_write(ioaddr, scboff(OFFSET_SCB, scb_command),
 542                     (unsigned char *) &scb_cs, sizeof(scb_cs));
 543
 544         set_chan_attn(ioaddr, lp->hacr);
 545
 546         for (i = 1000; i > 0; i--) {
 547                 obram_read(ioaddr, scboff(OFFSET_SCB, scb_command),
 548                            (unsigned char *) &scb_cs, sizeof(scb_cs));
 549                 if (scb_cs == 0)
 550                         break;
 551
 552                 udelay(10);
 553         }
 554         udelay(100);
 555
 556 #ifdef DEBUG_CONFIG_ERROR
 557         if (i <= 0)
 558                 printk(KERN_INFO
 559                        "%s: wv_ack(): board not accepting command.\n",
 560                        dev->name);
 561 #endif
 562 }
 563
 564 /*------------------------------------------------------------------*/
 565 /*
 566  * Set channel attention bit and busy wait until command has
 567  * completed, then acknowledge completion of the command.
 568  */
 569 static int wv_synchronous_cmd(struct net_device * dev, const char *str)
 570 {
 571         net_local *lp = netdev_priv(dev);
 572         unsigned long ioaddr = dev->base_addr;
 573         u16 scb_cmd;
 574         ach_t cb;
 575         int i;
 576
 577         scb_cmd = SCB_CMD_CUC & SCB_CMD_CUC_GO;
 578         obram_write(ioaddr, scboff(OFFSET_SCB, scb_command),
 579                     (unsigned char *) &scb_cmd, sizeof(scb_cmd));
 580
 581         set_chan_attn(ioaddr, lp->hacr);
 582
 583         for (i = 1000; i > 0; i--) {
 584                 obram_read(ioaddr, OFFSET_CU, (unsigned char *) &cb,
 585                            sizeof(cb));
 586                 if (cb.ac_status & AC_SFLD_C)
 587                         break;
 588
 589                 udelay(10);
 590         }
 591         udelay(100);
 592
 593         if (i <= 0 || !(cb.ac_status & AC_SFLD_OK)) {
 594 #ifdef DEBUG_CONFIG_ERROR
 595                 printk(KERN_INFO "%s: %s failed; status = 0x%x\n",
 596                        dev->name, str, cb.ac_status);
 597 #endif
 598 #ifdef DEBUG_I82586_SHOW
 599                 wv_scb_show(ioaddr);
 600 #endif
 601                 return -1;
 602         }
 603
 604         /* Ack the status */
 605         wv_ack(dev);
 606
 607         return 0;
 608 }
 609
 610 /*------------------------------------------------------------------*/
 611 /*
 612  * Configuration commands completion interrupt.
 613  * Check if done, and if OK.
 614  */
 615 static int
 616 wv_config_complete(struct net_device * dev, unsigned long ioaddr, net_local * lp)
 617 {
 618         unsigned short mcs_addr;
 619         unsigned short status;
 620         int ret;
 621
 622 #ifdef DEBUG_INTERRUPT_TRACE
 623         printk(KERN_DEBUG "%s: ->wv_config_complete()\n", dev->name);
 624 #endif
 625
 626         mcs_addr = lp->tx_first_in_use + sizeof(ac_tx_t) + sizeof(ac_nop_t)
 627             + sizeof(tbd_t) + sizeof(ac_cfg_t) + sizeof(ac_ias_t);
 628
 629         /* Read the status of the last command (set mc list). */
 630         obram_read(ioaddr, acoff(mcs_addr, ac_status),
 631                    (unsigned char *) &status, sizeof(status));
 632
 633         /* If not completed -> exit */
 634         if ((status & AC_SFLD_C) == 0)
 635                 ret = 0;        /* Not ready to be scrapped */
 636         else {
 637 #ifdef DEBUG_CONFIG_ERROR
 638                 unsigned short cfg_addr;
 639                 unsigned short ias_addr;
 640
 641                 /* Check mc_config command */
 642                 if ((status & AC_SFLD_OK) != AC_SFLD_OK)
 643                         printk(KERN_INFO
 644                                "%s: wv_config_complete(): set_multicast_address failed; status = 0x%x\n",
 645                                dev->name, status);
 646
 647                 /* check ia-config command */
 648                 ias_addr = mcs_addr - sizeof(ac_ias_t);
 649                 obram_read(ioaddr, acoff(ias_addr, ac_status),
 650                            (unsigned char *) &status, sizeof(status));
 651                 if ((status & AC_SFLD_OK) != AC_SFLD_OK)
 652                         printk(KERN_INFO
 653                                "%s: wv_config_complete(): set_MAC_address failed; status = 0x%x\n",
 654                                dev->name, status);
 655
 656                 /* Check config command. */
 657                 cfg_addr = ias_addr - sizeof(ac_cfg_t);
 658                 obram_read(ioaddr, acoff(cfg_addr, ac_status),
 659                            (unsigned char *) &status, sizeof(status));
 660                 if ((status & AC_SFLD_OK) != AC_SFLD_OK)
 661                         printk(KERN_INFO
 662                                "%s: wv_config_complete(): configure failed; status = 0x%x\n",
 663                                dev->name, status);
 664 #endif  /* DEBUG_CONFIG_ERROR */
 665
 666                 ret = 1;        /* Ready to be scrapped */
 667         }
 668
 669 #ifdef DEBUG_INTERRUPT_TRACE
 670         printk(KERN_DEBUG "%s: <-wv_config_complete() - %d\n", dev->name,
 671                ret);
 672 #endif
 673         return ret;
 674 }
 675
 676 /*------------------------------------------------------------------*/
 677 /*
 678  * Command completion interrupt.
 679  * Reclaim as many freed tx buffers as we can.
 680  * (called in wavelan_interrupt()).
 681  * Note : the spinlock is already grabbed for us.
 682  */
 683 static int wv_complete(struct net_device * dev, unsigned long ioaddr, net_local * lp)
 684 {
 685         int nreaped = 0;
 686
 687 #ifdef DEBUG_INTERRUPT_TRACE
 688         printk(KERN_DEBUG "%s: ->wv_complete()\n", dev->name);
 689 #endif
 690
 691         /* Loop on all the transmit buffers */
 692         while (lp->tx_first_in_use != I82586NULL) {
 693                 unsigned short tx_status;
 694
 695                 /* Read the first transmit buffer */
 696                 obram_read(ioaddr, acoff(lp->tx_first_in_use, ac_status),
 697                            (unsigned char *) &tx_status,
 698                            sizeof(tx_status));
 699
 700                 /* If not completed -> exit */
 701                 if ((tx_status & AC_SFLD_C) == 0)
 702                         break;
 703
 704                 /* Hack for reconfiguration */
 705                 if (tx_status == 0xFFFF)
 706                         if (!wv_config_complete(dev, ioaddr, lp))
 707                                 break;  /* Not completed */
 708
 709                 /* We now remove this buffer */
 710                 nreaped++;
 711                 --lp->tx_n_in_use;
 712
 713 /*
 714 if (lp->tx_n_in_use > 0)
 715         printk("%c", "0123456789abcdefghijk"[lp->tx_n_in_use]);
 716 */
 717
 718                 /* Was it the last one? */
 719                 if (lp->tx_n_in_use <= 0)
 720                         lp->tx_first_in_use = I82586NULL;
 721                 else {
 722                         /* Next one in the chain */
 723                         lp->tx_first_in_use += TXBLOCKZ;
 724                         if (lp->tx_first_in_use >=
 725                             OFFSET_CU +
 726                             NTXBLOCKS * TXBLOCKZ) lp->tx_first_in_use -=
 727                                     NTXBLOCKS * TXBLOCKZ;
 728                 }
 729
 730                 /* Hack for reconfiguration */
 731                 if (tx_status == 0xFFFF)
 732                         continue;
 733
 734                 /* Now, check status of the finished command */
 735                 if (tx_status & AC_SFLD_OK) {
 736                         int ncollisions;
 737
 738                         dev->stats.tx_packets++;
 739                         ncollisions = tx_status & AC_SFLD_MAXCOL;
 740                         dev->stats.collisions += ncollisions;
 741 #ifdef DEBUG_TX_INFO
 742                         if (ncollisions > 0)
 743                                 printk(KERN_DEBUG
 744                                        "%s: wv_complete(): tx completed after %d collisions.\n",
 745                                        dev->name, ncollisions);
 746 #endif
 747                 } else {
 748                         dev->stats.tx_errors++;
 749                         if (tx_status & AC_SFLD_S10) {
 750                                 dev->stats.tx_carrier_errors++;
 751 #ifdef DEBUG_TX_FAIL
 752                                 printk(KERN_DEBUG
 753                                        "%s: wv_complete(): tx error: no CS.\n",
 754                                        dev->name);
 755 #endif
 756                         }
 757                         if (tx_status & AC_SFLD_S9) {
 758                                 dev->stats.tx_carrier_errors++;
 759 #ifdef DEBUG_TX_FAIL
 760                                 printk(KERN_DEBUG
 761                                        "%s: wv_complete(): tx error: lost CTS.\n",
 762                                        dev->name);
 763 #endif
 764                         }
 765                         if (tx_status & AC_SFLD_S8) {
 766                                 dev->stats.tx_fifo_errors++;
 767 #ifdef DEBUG_TX_FAIL
 768                                 printk(KERN_DEBUG
 769                                        "%s: wv_complete(): tx error: slow DMA.\n",
 770                                        dev->name);
 771 #endif
 772                         }
 773                         if (tx_status & AC_SFLD_S6) {
 774                                 dev->stats.tx_heartbeat_errors++;
 775 #ifdef DEBUG_TX_FAIL
 776                                 printk(KERN_DEBUG
 777                                        "%s: wv_complete(): tx error: heart beat.\n",
 778                                        dev->name);
 779 #endif
 780                         }
 781                         if (tx_status & AC_SFLD_S5) {
 782                                 dev->stats.tx_aborted_errors++;
 783 #ifdef DEBUG_TX_FAIL
 784                                 printk(KERN_DEBUG
 785                                        "%s: wv_complete(): tx error: too many collisions.\n",
 786                                        dev->name);
 787 #endif
 788                         }
 789                 }
 790
 791 #ifdef DEBUG_TX_INFO
 792                 printk(KERN_DEBUG
 793                        "%s: wv_complete(): tx completed, tx_status 0x%04x\n",
 794                        dev->name, tx_status);
 795 #endif
 796         }
 797
 798 #ifdef DEBUG_INTERRUPT_INFO
 799         if (nreaped > 1)
 800                 printk(KERN_DEBUG "%s: wv_complete(): reaped %d\n",
 801                        dev->name, nreaped);
 802 #endif
 803
 804         /*
 805          * Inform upper layers.
 806          */
 807         if (lp->tx_n_in_use < NTXBLOCKS - 1) {
 808                 netif_wake_queue(dev);
 809         }
 810 #ifdef DEBUG_INTERRUPT_TRACE
 811         printk(KERN_DEBUG "%s: <-wv_complete()\n", dev->name);
 812 #endif
 813         return nreaped;
 814 }
 815
 816 /*------------------------------------------------------------------*/
 817 /*
 818  * Reconfigure the i82586, or at least ask for it.
 819  * Because wv_82586_config uses a transmission buffer, we must do it
 820  * when we are sure that there is one left, so we do it now
 821  * or in wavelan_packet_xmit() (I can't find any better place,
 822  * wavelan_interrupt is not an option), so you may experience
 823  * delays sometimes.
 824  */
 825 static void wv_82586_reconfig(struct net_device * dev)
 826 {
 827         net_local *lp = netdev_priv(dev);
 828         unsigned long flags;
 829
 830         /* Arm the flag, will be cleard in wv_82586_config() */
 831         lp->reconfig_82586 = 1;
 832
 833         /* Check if we can do it now ! */
 834         if((netif_running(dev)) && !(netif_queue_stopped(dev))) {
 835                 spin_lock_irqsave(&lp->spinlock, flags);
 836                 /* May fail */
 837                 wv_82586_config(dev);
 838                 spin_unlock_irqrestore(&lp->spinlock, flags);
 839         }
 840         else {
 841 #ifdef DEBUG_CONFIG_INFO
 842                 printk(KERN_DEBUG
 843                        "%s: wv_82586_reconfig(): delayed (state = %lX)\n",
 844                                dev->name, dev->state);
 845 #endif
 846         }
 847 }
 848
 849 /********************* DEBUG & INFO SUBROUTINES *********************/
 850 /*
 851  * This routine is used in the code to show information for debugging.
 852  * Most of the time, it dumps the contents of hardware structures.
 853  */
 854
 855 #ifdef DEBUG_PSA_SHOW
 856 /*------------------------------------------------------------------*/
 857 /*
 858  * Print the formatted contents of the Parameter Storage Area.
 859  */
 860 static void wv_psa_show(psa_t * p)
 861 {
 862         printk(KERN_DEBUG "##### WaveLAN PSA contents: #####\n");
 863         printk(KERN_DEBUG "psa_io_base_addr_1: 0x%02X %02X %02X %02X\n",
 864                p->psa_io_base_addr_1,
 865                p->psa_io_base_addr_2,
 866                p->psa_io_base_addr_3, p->psa_io_base_addr_4);
 867         printk(KERN_DEBUG "psa_rem_boot_addr_1: 0x%02X %02X %02X\n",
 868                p->psa_rem_boot_addr_1,
 869                p->psa_rem_boot_addr_2, p->psa_rem_boot_addr_3);
 870         printk(KERN_DEBUG "psa_holi_params: 0x%02x, ", p->psa_holi_params);
 871         printk("psa_int_req_no: %d\n", p->psa_int_req_no);
 872 #ifdef DEBUG_SHOW_UNUSED
 873         printk(KERN_DEBUG "psa_unused0[]: %pM\n", p->psa_unused0);
 874 #endif                          /* DEBUG_SHOW_UNUSED */
 875         printk(KERN_DEBUG "psa_univ_mac_addr[]: %pM\n", p->psa_univ_mac_addr);
 876         printk(KERN_DEBUG "psa_local_mac_addr[]: %pM\n", p->psa_local_mac_addr);
 877         printk(KERN_DEBUG "psa_univ_local_sel: %d, ",
 878                p->psa_univ_local_sel);
 879         printk("psa_comp_number: %d, ", p->psa_comp_number);
 880         printk("psa_thr_pre_set: 0x%02x\n", p->psa_thr_pre_set);
 881         printk(KERN_DEBUG "psa_feature_select/decay_prm: 0x%02x, ",
 882                p->psa_feature_select);
 883         printk("psa_subband/decay_update_prm: %d\n", p->psa_subband);
 884         printk(KERN_DEBUG "psa_quality_thr: 0x%02x, ", p->psa_quality_thr);
 885         printk("psa_mod_delay: 0x%02x\n", p->psa_mod_delay);
 886         printk(KERN_DEBUG "psa_nwid: 0x%02x%02x, ", p->psa_nwid[0],
 887                p->psa_nwid[1]);
 888         printk("psa_nwid_select: %d\n", p->psa_nwid_select);
 889         printk(KERN_DEBUG "psa_encryption_select: %d, ",
 890                p->psa_encryption_select);
 891         printk
 892             ("psa_encryption_key[]: %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n",
 893              p->psa_encryption_key[0], p->psa_encryption_key[1],
 894              p->psa_encryption_key[2], p->psa_encryption_key[3],
 895              p->psa_encryption_key[4], p->psa_encryption_key[5],
 896              p->psa_encryption_key[6], p->psa_encryption_key[7]);
 897         printk(KERN_DEBUG "psa_databus_width: %d\n", p->psa_databus_width);
 898         printk(KERN_DEBUG "psa_call_code/auto_squelch: 0x%02x, ",
 899                p->psa_call_code[0]);
 900         printk
 901             ("psa_call_code[]: %02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X\n",
 902              p->psa_call_code[0], p->psa_call_code[1], p->psa_call_code[2],
 903              p->psa_call_code[3], p->psa_call_code[4], p->psa_call_code[5],
 904              p->psa_call_code[6], p->psa_call_code[7]);
 905 #ifdef DEBUG_SHOW_UNUSED
 906         printk(KERN_DEBUG "psa_reserved[]: %02X:%02X\n",
 907                p->psa_reserved[0],
 908                p->psa_reserved[1]);
 909 #endif                          /* DEBUG_SHOW_UNUSED */
 910         printk(KERN_DEBUG "psa_conf_status: %d, ", p->psa_conf_status);
 911         printk("psa_crc: 0x%02x%02x, ", p->psa_crc[0], p->psa_crc[1]);
 912         printk("psa_crc_status: 0x%02x\n", p->psa_crc_status);
 913 }                               /* wv_psa_show */
 914 #endif                          /* DEBUG_PSA_SHOW */
 915
 916 #ifdef DEBUG_MMC_SHOW
 917 /*------------------------------------------------------------------*/
 918 /*
 919  * Print the formatted status of the Modem Management Controller.
 920  * This function needs to be completed.
 921  */
 922 static void wv_mmc_show(struct net_device * dev)
 923 {
 924         unsigned long ioaddr = dev->base_addr;
 925         net_local *lp = netdev_priv(dev);
 926         mmr_t m;
 927
 928         /* Basic check */
 929         if (hasr_read(ioaddr) & HASR_NO_CLK) {
 930                 printk(KERN_WARNING
 931                        "%s: wv_mmc_show: modem not connected\n",
 932                        dev->name);
 933                 return;
 934         }
 935
 936         /* Read the mmc */
 937         mmc_out(ioaddr, mmwoff(0, mmw_freeze), 1);
 938         mmc_read(ioaddr, 0, (u8 *) & m, sizeof(m));
 939         mmc_out(ioaddr, mmwoff(0, mmw_freeze), 0);
 940
 941         /* Don't forget to update statistics */
 942         lp->wstats.discard.nwid +=
 943             (m.mmr_wrong_nwid_h << 8) | m.mmr_wrong_nwid_l;
 944
 945         printk(KERN_DEBUG "##### WaveLAN modem status registers: #####\n");
 946 #ifdef DEBUG_SHOW_UNUSED
 947         printk(KERN_DEBUG
 948                "mmc_unused0[]: %02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X\n",
 949                m.mmr_unused0[0], m.mmr_unused0[1], m.mmr_unused0[2],
 950                m.mmr_unused0[3], m.mmr_unused0[4], m.mmr_unused0[5],
 951                m.mmr_unused0[6], m.mmr_unused0[7]);
 952 #endif                          /* DEBUG_SHOW_UNUSED */
 953         printk(KERN_DEBUG "Encryption algorithm: %02X - Status: %02X\n",
 954                m.mmr_des_avail, m.mmr_des_status);
 955 #ifdef DEBUG_SHOW_UNUSED
 956         printk(KERN_DEBUG "mmc_unused1[]: %02X:%02X:%02X:%02X:%02X\n",
 957                m.mmr_unused1[0],
 958                m.mmr_unused1[1],
 959                m.mmr_unused1[2], m.mmr_unused1[3], m.mmr_unused1[4]);
 960 #endif                          /* DEBUG_SHOW_UNUSED */
 961         printk(KERN_DEBUG "dce_status: 0x%x [%s%s%s%s]\n",
 962                m.mmr_dce_status,
 963                (m.
 964                 mmr_dce_status & MMR_DCE_STATUS_RX_BUSY) ?
 965                "energy detected," : "",
 966                (m.
 967                 mmr_dce_status & MMR_DCE_STATUS_LOOPT_IND) ?
 968                "loop test indicated," : "",
 969                (m.
 970                 mmr_dce_status & MMR_DCE_STATUS_TX_BUSY) ?
 971                "transmitter on," : "",
 972                (m.
 973                 mmr_dce_status & MMR_DCE_STATUS_JBR_EXPIRED) ?
 974                "jabber timer expired," : "");
 975         printk(KERN_DEBUG "Dsp ID: %02X\n", m.mmr_dsp_id);
 976 #ifdef DEBUG_SHOW_UNUSED
 977         printk(KERN_DEBUG "mmc_unused2[]: %02X:%02X\n",
 978                m.mmr_unused2[0], m.mmr_unused2[1]);
 979 #endif                          /* DEBUG_SHOW_UNUSED */
 980         printk(KERN_DEBUG "# correct_nwid: %d, # wrong_nwid: %d\n",
 981                (m.mmr_correct_nwid_h << 8) | m.mmr_correct_nwid_l,
 982                (m.mmr_wrong_nwid_h << 8) | m.mmr_wrong_nwid_l);
 983         printk(KERN_DEBUG "thr_pre_set: 0x%x [current signal %s]\n",
 984                m.mmr_thr_pre_set & MMR_THR_PRE_SET,
 985                (m.
 986                 mmr_thr_pre_set & MMR_THR_PRE_SET_CUR) ? "above" :
 987                "below");
 988         printk(KERN_DEBUG "signal_lvl: %d [%s], ",
 989                m.mmr_signal_lvl & MMR_SIGNAL_LVL,
 990                (m.
 991                 mmr_signal_lvl & MMR_SIGNAL_LVL_VALID) ? "new msg" :
 992                "no new msg");
 993         printk("silence_lvl: %d [%s], ",
 994                m.mmr_silence_lvl & MMR_SILENCE_LVL,
 995                (m.
 996                 mmr_silence_lvl & MMR_SILENCE_LVL_VALID) ? "update done" :
 997                "no new update");
 998         printk("sgnl_qual: 0x%x [%s]\n", m.mmr_sgnl_qual & MMR_SGNL_QUAL,
 999                (m.
1000                 mmr_sgnl_qual & MMR_SGNL_QUAL_ANT) ? "Antenna 1" :
1001                "Antenna 0");
1002 #ifdef DEBUG_SHOW_UNUSED
1003         printk(KERN_DEBUG "netw_id_l: %x\n", m.mmr_netw_id_l);
1004 #endif                          /* DEBUG_SHOW_UNUSED */
1005 }                               /* wv_mmc_show */
1006 #endif                          /* DEBUG_MMC_SHOW */
1007
1008 #ifdef DEBUG_I82586_SHOW
1009 /*------------------------------------------------------------------*/
1010 /*
1011  * Print the last block of the i82586 memory.
1012  */
1013 static void wv_scb_show(unsigned long ioaddr)
1014 {
1015         scb_t scb;
1016
1017         obram_read(ioaddr, OFFSET_SCB, (unsigned char *) &scb,
1018                    sizeof(scb));
1019
1020         printk(KERN_DEBUG "##### WaveLAN system control block: #####\n");
1021
1022         printk(KERN_DEBUG "status: ");
1023         printk("stat 0x%x[%s%s%s%s] ",
1024                (scb.
1025                 scb_status & (SCB_ST_CX | SCB_ST_FR | SCB_ST_CNA |
1026                               SCB_ST_RNR)) >> 12,
1027                (scb.
1028                 scb_status & SCB_ST_CX) ? "command completion interrupt," :
1029                "", (scb.scb_status & SCB_ST_FR) ? "frame received," : "",
1030                (scb.
1031                 scb_status & SCB_ST_CNA) ? "command unit not active," : "",
1032                (scb.
1033                 scb_status & SCB_ST_RNR) ? "receiving unit not ready," :
1034                "");
1035         printk("cus 0x%x[%s%s%s] ", (scb.scb_status & SCB_ST_CUS) >> 8,
1036                ((scb.scb_status & SCB_ST_CUS) ==
1037                 SCB_ST_CUS_IDLE) ? "idle" : "",
1038                ((scb.scb_status & SCB_ST_CUS) ==
1039                 SCB_ST_CUS_SUSP) ? "suspended" : "",
1040                ((scb.scb_status & SCB_ST_CUS) ==
1041                 SCB_ST_CUS_ACTV) ? "active" : "");
1042         printk("rus 0x%x[%s%s%s%s]\n", (scb.scb_status & SCB_ST_RUS) >> 4,
1043                ((scb.scb_status & SCB_ST_RUS) ==
1044                 SCB_ST_RUS_IDLE) ? "idle" : "",
1045                ((scb.scb_status & SCB_ST_RUS) ==
1046                 SCB_ST_RUS_SUSP) ? "suspended" : "",
1047                ((scb.scb_status & SCB_ST_RUS) ==
1048                 SCB_ST_RUS_NRES) ? "no resources" : "",
1049                ((scb.scb_status & SCB_ST_RUS) ==
1050                 SCB_ST_RUS_RDY) ? "ready" : "");
1051
1052         printk(KERN_DEBUG "command: ");
1053         printk("ack 0x%x[%s%s%s%s] ",
1054                (scb.
1055                 scb_command & (SCB_CMD_ACK_CX | SCB_CMD_ACK_FR |
1056                                SCB_CMD_ACK_CNA | SCB_CMD_ACK_RNR)) >> 12,
1057                (scb.
1058                 scb_command & SCB_CMD_ACK_CX) ? "ack cmd completion," : "",
1059                (scb.
1060                 scb_command & SCB_CMD_ACK_FR) ? "ack frame received," : "",
1061                (scb.
1062                 scb_command & SCB_CMD_ACK_CNA) ? "ack CU not active," : "",
1063                (scb.
1064                 scb_command & SCB_CMD_ACK_RNR) ? "ack RU not ready," : "");
1065         printk("cuc 0x%x[%s%s%s%s%s] ",
1066                (scb.scb_command & SCB_CMD_CUC) >> 8,
1067                ((scb.scb_command & SCB_CMD_CUC) ==
1068                 SCB_CMD_CUC_NOP) ? "nop" : "",
1069                ((scb.scb_command & SCB_CMD_CUC) ==
1070                 SCB_CMD_CUC_GO) ? "start cbl_offset" : "",
1071                ((scb.scb_command & SCB_CMD_CUC) ==
1072                 SCB_CMD_CUC_RES) ? "resume execution" : "",
1073                ((scb.scb_command & SCB_CMD_CUC) ==
1074                 SCB_CMD_CUC_SUS) ? "suspend execution" : "",
1075                ((scb.scb_command & SCB_CMD_CUC) ==
1076                 SCB_CMD_CUC_ABT) ? "abort execution" : "");
1077         printk("ruc 0x%x[%s%s%s%s%s]\n",
1078                (scb.scb_command & SCB_CMD_RUC) >> 4,
1079                ((scb.scb_command & SCB_CMD_RUC) ==
1080                 SCB_CMD_RUC_NOP) ? "nop" : "",
1081                ((scb.scb_command & SCB_CMD_RUC) ==
1082                 SCB_CMD_RUC_GO) ? "start rfa_offset" : "",
1083                ((scb.scb_command & SCB_CMD_RUC) ==
1084                 SCB_CMD_RUC_RES) ? "resume reception" : "",
1085                ((scb.scb_command & SCB_CMD_RUC) ==
1086                 SCB_CMD_RUC_SUS) ? "suspend reception" : "",
1087                ((scb.scb_command & SCB_CMD_RUC) ==
1088                 SCB_CMD_RUC_ABT) ? "abort reception" : "");
1089
1090         printk(KERN_DEBUG "cbl_offset 0x%x ", scb.scb_cbl_offset);
1091         printk("rfa_offset 0x%x\n", scb.scb_rfa_offset);
1092
1093         printk(KERN_DEBUG "crcerrs %d ", scb.scb_crcerrs);
1094         printk("alnerrs %d ", scb.scb_alnerrs);
1095         printk("rscerrs %d ", scb.scb_rscerrs);
1096         printk("ovrnerrs %d\n", scb.scb_ovrnerrs);
1097 }
1098
1099 /*------------------------------------------------------------------*/
1100 /*
1101  * Print the formatted status of the i82586's receive unit.
1102  */
1103 static void wv_ru_show(struct net_device * dev)
1104 {
1105         printk(KERN_DEBUG
1106                "##### WaveLAN i82586 receiver unit status: #####\n");
1107         printk(KERN_DEBUG "ru:");
1108         /*
1109          * Not implemented yet
1110          */
1111         printk("\n");
1112 }                               /* wv_ru_show */
1113
1114 /*------------------------------------------------------------------*/
1115 /*
1116  * Display info about one control block of the i82586 memory.
1117  */
1118 static void wv_cu_show_one(struct net_device * dev, net_local * lp, int i, u16 p)
1119 {
1120         unsigned long ioaddr;
1121         ac_tx_t actx;
1122
1123         ioaddr = dev->base_addr;
1124
1125         printk("%d: 0x%x:", i, p);
1126
1127         obram_read(ioaddr, p, (unsigned char *) &actx, sizeof(actx));
1128         printk(" status=0x%x,", actx.tx_h.ac_status);
1129         printk(" command=0x%x,", actx.tx_h.ac_command);
1130
1131         /*
1132            {
1133            tbd_t      tbd;
1134
1135            obram_read(ioaddr, actx.tx_tbd_offset, (unsigned char *)&tbd, sizeof(tbd));
1136            printk(" tbd_status=0x%x,", tbd.tbd_status);
1137            }
1138          */
1139
1140         printk("|");
1141 }
1142
1143 /*------------------------------------------------------------------*/
1144 /*
1145  * Print status of the command unit of the i82586.
1146  */
1147 static void wv_cu_show(struct net_device * dev)
1148 {
1149         net_local *lp = netdev_priv(dev);
1150         unsigned int i;
1151         u16 p;
1152
1153         printk(KERN_DEBUG
1154                "##### WaveLAN i82586 command unit status: #####\n");
1155
1156         printk(KERN_DEBUG);
1157         for (i = 0, p = lp->tx_first_in_use; i < NTXBLOCKS; i++) {
1158                 wv_cu_show_one(dev, lp, i, p);
1159
1160                 p += TXBLOCKZ;
1161                 if (p >= OFFSET_CU + NTXBLOCKS * TXBLOCKZ)
1162                         p -= NTXBLOCKS * TXBLOCKZ;
1163         }
1164         printk("\n");
1165 }
1166 #endif                          /* DEBUG_I82586_SHOW */
1167
1168 #ifdef DEBUG_DEVICE_SHOW
1169 /*------------------------------------------------------------------*/
1170 /*
1171  * Print the formatted status of the WaveLAN PCMCIA device driver.
1172  */
1173 static void wv_dev_show(struct net_device * dev)
1174 {
1175         printk(KERN_DEBUG "dev:");
1176         printk(" state=%lX,", dev->state);
1177         printk(" trans_start=%ld,", dev->trans_start);
1178         printk(" flags=0x%x,", dev->flags);
1179         printk("\n");
1180 }                               /* wv_dev_show */
1181
1182 /*------------------------------------------------------------------*/
1183 /*
1184  * Print the formatted status of the WaveLAN PCMCIA device driver's
1185  * private information.
1186  */
1187 static void wv_local_show(struct net_device * dev)
1188 {
1189         net_local *lp;
1190
1191         lp = netdev_priv(dev);
1192
1193         printk(KERN_DEBUG "local:");
1194         printk(" tx_n_in_use=%d,", lp->tx_n_in_use);
1195         printk(" hacr=0x%x,", lp->hacr);
1196         printk(" rx_head=0x%x,", lp->rx_head);
1197         printk(" rx_last=0x%x,", lp->rx_last);
1198         printk(" tx_first_free=0x%x,", lp->tx_first_free);
1199         printk(" tx_first_in_use=0x%x,", lp->tx_first_in_use);
1200         printk("\n");
1201 }                               /* wv_local_show */
1202 #endif                          /* DEBUG_DEVICE_SHOW */
1203
1204 #if defined(DEBUG_RX_INFO) || defined(DEBUG_TX_INFO)
1205 /*------------------------------------------------------------------*/
1206 /*
1207  * Dump packet header (and content if necessary) on the screen
1208  */
1209 static inline void wv_packet_info(u8 * p,       /* Packet to dump */
1210                                   int length,   /* Length of the packet */
1211                                   char *msg1,   /* Name of the device */
1212                                   char *msg2)
1213 {                               /* Name of the function */
1214         int i;
1215         int maxi;
1216
1217         printk(KERN_DEBUG
1218                "%s: %s(): dest %pM, length %d\n",
1219                msg1, msg2, p, length);
1220         printk(KERN_DEBUG
1221                "%s: %s(): src %pM, type 0x%02X%02X\n",
1222                msg1, msg2, &p[6], p[12], p[13]);
1223
1224 #ifdef DEBUG_PACKET_DUMP
1225
1226         printk(KERN_DEBUG "data=\"");
1227
1228         if ((maxi = length) > DEBUG_PACKET_DUMP)
1229                 maxi = DEBUG_PACKET_DUMP;
1230         for (i = 14; i < maxi; i++)
1231                 if (p[i] >= ' ' && p[i] <= '~')
1232                         printk(" %c", p[i]);
1233                 else
1234                         printk("%02X", p[i]);
1235         if (maxi < length)
1236                 printk("..");
1237         printk("\"\n");
1238         printk(KERN_DEBUG "\n");
1239 #endif                          /* DEBUG_PACKET_DUMP */
1240 }
1241 #endif                          /* defined(DEBUG_RX_INFO) || defined(DEBUG_TX_INFO) */
1242
1243 /*------------------------------------------------------------------*/
1244 /*
1245  * This is the information which is displayed by the driver at startup.
1246  * There are lots of flags for configuring it to your liking.
1247  */
1248 static void wv_init_info(struct net_device * dev)
1249 {
1250         short ioaddr = dev->base_addr;
1251         net_local *lp = netdev_priv(dev);
1252         psa_t psa;
1253
1254         /* Read the parameter storage area */
1255         psa_read(ioaddr, lp->hacr, 0, (unsigned char *) &psa, sizeof(psa));
1256
1257 #ifdef DEBUG_PSA_SHOW
1258         wv_psa_show(&psa);
1259 #endif
1260 #ifdef DEBUG_MMC_SHOW
1261         wv_mmc_show(dev);
1262 #endif
1263 #ifdef DEBUG_I82586_SHOW
1264         wv_cu_show(dev);
1265 #endif
1266
1267 #ifdef DEBUG_BASIC_SHOW
1268         /* Now, let's go for the basic stuff. */
1269         printk(KERN_NOTICE "%s: WaveLAN at %#x, %pM, IRQ %d",
1270                dev->name, ioaddr, dev->dev_addr, dev->irq);
1271
1272         /* Print current network ID. */
1273         if (psa.psa_nwid_select)
1274                 printk(", nwid 0x%02X-%02X", psa.psa_nwid[0],
1275                        psa.psa_nwid[1]);
1276         else
1277                 printk(", nwid off");
1278
1279         /* If 2.00 card */
1280         if (!(mmc_in(ioaddr, mmroff(0, mmr_fee_status)) &
1281               (MMR_FEE_STATUS_DWLD | MMR_FEE_STATUS_BUSY))) {
1282                 unsigned short freq;
1283
1284                 /* Ask the EEPROM to read the frequency from the first area. */
1285                 fee_read(ioaddr, 0x00, &freq, 1);
1286
1287                 /* Print frequency */
1288                 printk(", 2.00, %ld", (freq >> 6) + 2400L);
1289
1290                 /* Hack! */
1291                 if (freq & 0x20)
1292                         printk(".5");
1293         } else {
1294                 printk(", PC");
1295                 switch (psa.psa_comp_number) {
1296                 case PSA_COMP_PC_AT_915:
1297                 case PSA_COMP_PC_AT_2400:
1298                         printk("-AT");
1299                         break;
1300                 case PSA_COMP_PC_MC_915:
1301                 case PSA_COMP_PC_MC_2400:
1302                         printk("-MC");
1303                         break;
1304                 case PSA_COMP_PCMCIA_915:
1305                         printk("MCIA");
1306                         break;
1307                 default:
1308                         printk("?");
1309                 }
1310                 printk(", ");
1311                 switch (psa.psa_subband) {
1312                 case PSA_SUBBAND_915:
1313                         printk("915");
1314                         break;
1315                 case PSA_SUBBAND_2425:
1316                         printk("2425");
1317                         break;
1318                 case PSA_SUBBAND_2460:
1319                         printk("2460");
1320                         break;
1321                 case PSA_SUBBAND_2484:
1322                         printk("2484");
1323                         break;
1324                 case PSA_SUBBAND_2430_5:
1325                         printk("2430.5");
1326                         break;
1327                 default:
1328                         printk("?");
1329                 }
1330         }
1331
1332         printk(" MHz\n");
1333 #endif                          /* DEBUG_BASIC_SHOW */
1334
1335 #ifdef DEBUG_VERSION_SHOW
1336         /* Print version information */
1337         printk(KERN_NOTICE "%s", version);
1338 #endif
1339 }                               /* wv_init_info */
1340
1341 /********************* IOCTL, STATS & RECONFIG *********************/
1342 /*
1343  * We found here routines that are called by Linux on different
1344  * occasions after the configuration and not for transmitting data
1345  * These may be called when the user use ifconfig, /proc/net/dev
1346  * or wireless extensions
1347  */
1348
1349
1350 /*------------------------------------------------------------------*/
1351 /*
1352  * Set or clear the multicast filter for this adaptor.
1353  * num_addrs == -1      Promiscuous mode, receive all packets
1354  * num_addrs == 0       Normal mode, clear multicast list
1355  * num_addrs > 0        Multicast mode, receive normal and MC packets,
1356  *                      and do best-effort filtering.
1357  */
1358 static void wavelan_set_multicast_list(struct net_device * dev)
1359 {
1360         net_local *lp = netdev_priv(dev);
1361
1362 #ifdef DEBUG_IOCTL_TRACE
1363         printk(KERN_DEBUG "%s: ->wavelan_set_multicast_list()\n",
1364                dev->name);
1365 #endif
1366
1367 #ifdef DEBUG_IOCTL_INFO
1368         printk(KERN_DEBUG
1369                "%s: wavelan_set_multicast_list(): setting Rx mode %02X to %d addresses.\n",
1370                dev->name, dev->flags, dev->mc_count);
1371 #endif
1372
1373         /* Are we asking for promiscuous mode,
1374          * or all multicast addresses (we don't have that!)
1375          * or too many multicast addresses for the hardware filter? */
1376         if ((dev->flags & IFF_PROMISC) ||
1377             (dev->flags & IFF_ALLMULTI) ||
1378             (dev->mc_count > I82586_MAX_MULTICAST_ADDRESSES)) {
1379                 /*
1380                  * Enable promiscuous mode: receive all packets.
1381                  */
1382                 if (!lp->promiscuous) {
1383                         lp->promiscuous = 1;
1384                         lp->mc_count = 0;
1385
1386                         wv_82586_reconfig(dev);
1387                 }
1388         } else
1389                 /* Are there multicast addresses to send? */
1390         if (dev->mc_list != (struct dev_mc_list *) NULL) {
1391                 /*
1392                  * Disable promiscuous mode, but receive all packets
1393                  * in multicast list
1394                  */
1395 #ifdef MULTICAST_AVOID
1396                 if (lp->promiscuous || (dev->mc_count != lp->mc_count))
1397 #endif
1398                 {
1399                         lp->promiscuous = 0;
1400                         lp->mc_count = dev->mc_count;
1401
1402                         wv_82586_reconfig(dev);
1403                 }
1404         } else {
1405                 /*
1406                  * Switch to normal mode: disable promiscuous mode and
1407                  * clear the multicast list.
1408                  */
1409                 if (lp->promiscuous || lp->mc_count == 0) {
1410                         lp->promiscuous = 0;
1411                         lp->mc_count = 0;
1412
1413                         wv_82586_reconfig(dev);
1414                 }
1415         }
1416 #ifdef DEBUG_IOCTL_TRACE
1417         printk(KERN_DEBUG "%s: <-wavelan_set_multicast_list()\n",
1418                dev->name);
1419 #endif
1420 }
1421
1422 /*------------------------------------------------------------------*/
1423 /*
1424  * This function doesn't exist.
1425  * (Note : it was a nice way to test the reconfigure stuff...)
1426  */
1427 #ifdef SET_MAC_ADDRESS
1428 static int wavelan_set_mac_address(struct net_device * dev, void *addr)
1429 {
1430         struct sockaddr *mac = addr;
1431
1432         /* Copy the address. */
1433         memcpy(dev->dev_addr, mac->sa_data, WAVELAN_ADDR_SIZE);
1434
1435         /* Reconfigure the beast. */
1436         wv_82586_reconfig(dev);
1437
1438         return 0;
1439 }
1440 #endif                          /* SET_MAC_ADDRESS */
1441
1442
1443 /*------------------------------------------------------------------*/
1444 /*
1445  * Frequency setting (for hardware capable of it)
1446  * It's a bit complicated and you don't really want to look into it.
1447  * (called in wavelan_ioctl)
1448  */
1449 static int wv_set_frequency(unsigned long ioaddr,       /* I/O port of the card */
1450                                    iw_freq * frequency)
1451 {
1452         const int BAND_NUM = 10;        /* Number of bands */
1453         long freq = 0L;         /* offset to 2.4 GHz in .5 MHz */
1454 #ifdef DEBUG_IOCTL_INFO
1455         int i;
1456 #endif
1457
1458         /* Setting by frequency */
1459         /* Theoretically, you may set any frequency between
1460          * the two limits with a 0.5 MHz precision. In practice,
1461          * I don't want you to have trouble with local regulations.
1462          */
1463         if ((frequency->e == 1) &&
1464             (frequency->m >= (int) 2.412e8)
1465             && (frequency->m <= (int) 2.487e8)) {
1466                 freq = ((frequency->m / 10000) - 24000L) / 5;
1467         }
1468
1469         /* Setting by channel (same as wfreqsel) */
1470         /* Warning: each channel is 22 MHz wide, so some of the channels
1471          * will interfere. */
1472         if ((frequency->e == 0) && (frequency->m < BAND_NUM)) {
1473                 /* Get frequency offset. */
1474                 freq = channel_bands[frequency->m] >> 1;
1475         }
1476
1477         /* Verify that the frequency is allowed. */
1478         if (freq != 0L) {
1479                 u16 table[10];  /* Authorized frequency table */
1480
1481                 /* Read the frequency table. */
1482                 fee_read(ioaddr, 0x71, table, 10);
1483
1484 #ifdef DEBUG_IOCTL_INFO
1485                 printk(KERN_DEBUG "Frequency table: ");
1486                 for (i = 0; i < 10; i++) {
1487                         printk(" %04X", table[i]);
1488                 }
1489                 printk("\n");
1490 #endif
1491
1492                 /* Look in the table to see whether the frequency is allowed. */
1493                 if (!(table[9 - ((freq - 24) / 16)] &
1494                       (1 << ((freq - 24) % 16)))) return -EINVAL;       /* not allowed */
1495         } else
1496                 return -EINVAL;
1497
1498         /* if we get a usable frequency */
1499         if (freq != 0L) {
1500                 unsigned short area[16];
1501                 unsigned short dac[2];
1502                 unsigned short area_verify[16];
1503                 unsigned short dac_verify[2];
1504                 /* Corresponding gain (in the power adjust value table)
1505                  * See AT&T WaveLAN Data Manual, REF 407-024689/E, page 3-8
1506                  * and WCIN062D.DOC, page 6.2.9. */
1507                 unsigned short power_limit[] = { 40, 80, 120, 160, 0 };
1508                 int power_band = 0;     /* Selected band */
1509                 unsigned short power_adjust;    /* Correct value */
1510
1511                 /* Search for the gain. */
1512                 power_band = 0;
1513                 while ((freq > power_limit[power_band]) &&
1514                        (power_limit[++power_band] != 0));
1515
1516                 /* Read the first area. */
1517                 fee_read(ioaddr, 0x00, area, 16);
1518
1519                 /* Read the DAC. */
1520                 fee_read(ioaddr, 0x60, dac, 2);
1521
1522                 /* Read the new power adjust value. */
1523                 fee_read(ioaddr, 0x6B - (power_band >> 1), &power_adjust,
1524                          1);
1525                 if (power_band & 0x1)
1526                         power_adjust >>= 8;
1527                 else
1528                         power_adjust &= 0xFF;
1529
1530 #ifdef DEBUG_IOCTL_INFO
1531                 printk(KERN_DEBUG "WaveLAN EEPROM Area 1: ");
1532                 for (i = 0; i < 16; i++) {
1533                         printk(" %04X", area[i]);
1534                 }
1535                 printk("\n");
1536
1537                 printk(KERN_DEBUG "WaveLAN EEPROM DAC: %04X %04X\n",
1538                        dac[0], dac[1]);
1539 #endif
1540
1541                 /* Frequency offset (for info only) */
1542                 area[0] = ((freq << 5) & 0xFFE0) | (area[0] & 0x1F);
1543
1544                 /* Receiver Principle main divider coefficient */
1545                 area[3] = (freq >> 1) + 2400L - 352L;
1546                 area[2] = ((freq & 0x1) << 4) | (area[2] & 0xFFEF);
1547
1548                 /* Transmitter Main divider coefficient */
1549                 area[13] = (freq >> 1) + 2400L;
1550                 area[12] = ((freq & 0x1) << 4) | (area[2] & 0xFFEF);
1551
1552                 /* Other parts of the area are flags, bit streams or unused. */
1553
1554                 /* Set the value in the DAC. */
1555                 dac[1] = ((power_adjust >> 1) & 0x7F) | (dac[1] & 0xFF80);
1556                 dac[0] = ((power_adjust & 0x1) << 4) | (dac[0] & 0xFFEF);
1557
1558                 /* Write the first area. */
1559                 fee_write(ioaddr, 0x00, area, 16);
1560
1561                 /* Write the DAC. */
1562                 fee_write(ioaddr, 0x60, dac, 2);
1563
1564                 /* We now should verify here that the writing of the EEPROM went OK. */
1565
1566                 /* Reread the first area. */
1567                 fee_read(ioaddr, 0x00, area_verify, 16);
1568
1569                 /* Reread the DAC. */
1570                 fee_read(ioaddr, 0x60, dac_verify, 2);
1571
1572                 /* Compare. */
1573                 if (memcmp(area, area_verify, 16 * 2) ||
1574                     memcmp(dac, dac_verify, 2 * 2)) {
1575 #ifdef DEBUG_IOCTL_ERROR
1576                         printk(KERN_INFO
1577                                "WaveLAN: wv_set_frequency: unable to write new frequency to EEPROM(?).\n");
1578 #endif
1579                         return -EOPNOTSUPP;
1580                 }
1581
1582                 /* We must download the frequency parameters to the
1583                  * synthesizers (from the EEPROM - area 1)
1584                  * Note: as the EEPROM is automatically decremented, we set the end
1585                  * if the area... */
1586                 mmc_out(ioaddr, mmwoff(0, mmw_fee_addr), 0x0F);
1587                 mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl),
1588                         MMW_FEE_CTRL_READ | MMW_FEE_CTRL_DWLD);
1589
1590                 /* Wait until the download is finished. */
1591                 fee_wait(ioaddr, 100, 100);
1592
1593                 /* We must now download the power adjust value (gain) to
1594                  * the synthesizers (from the EEPROM - area 7 - DAC). */
1595                 mmc_out(ioaddr, mmwoff(0, mmw_fee_addr), 0x61);
1596                 mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl),
1597                         MMW_FEE_CTRL_READ | MMW_FEE_CTRL_DWLD);
1598
1599                 /* Wait for the download to finish. */
1600                 fee_wait(ioaddr, 100, 100);
1601
1602 #ifdef DEBUG_IOCTL_INFO
1603                 /* Verification of what we have done */
1604
1605                 printk(KERN_DEBUG "WaveLAN EEPROM Area 1: ");
1606                 for (i = 0; i < 16; i++) {
1607                         printk(" %04X", area_verify[i]);
1608                 }
1609                 printk("\n");
1610
1611                 printk(KERN_DEBUG "WaveLAN EEPROM DAC:  %04X %04X\n",
1612                        dac_verify[0], dac_verify[1]);
1613 #endif
1614
1615                 return 0;
1616         } else
1617                 return -EINVAL; /* Bah, never get there... */
1618 }
1619
1620 /*------------------------------------------------------------------*/
1621 /*
1622  * Give the list of available frequencies.
1623  */
1624 static int wv_frequency_list(unsigned long ioaddr,      /* I/O port of the card */
1625                                     iw_freq * list,     /* List of frequencies to fill */
1626                                     int max)
1627 {                               /* Maximum number of frequencies */
1628         u16 table[10];  /* Authorized frequency table */
1629         long freq = 0L;         /* offset to 2.4 GHz in .5 MHz + 12 MHz */
1630         int i;                  /* index in the table */
1631         int c = 0;              /* Channel number */
1632
1633         /* Read the frequency table. */
1634         fee_read(ioaddr, 0x71 /* frequency table */ , table, 10);
1635
1636         /* Check all frequencies. */
1637         i = 0;
1638         for (freq = 0; freq < 150; freq++)
1639                 /* Look in the table if the frequency is allowed */
1640                 if (table[9 - (freq / 16)] & (1 << (freq % 16))) {
1641                         /* Compute approximate channel number */
1642                         while ((c < ARRAY_SIZE(channel_bands)) &&
1643                                 (((channel_bands[c] >> 1) - 24) < freq))
1644                                 c++;
1645                         list[i].i = c;  /* Set the list index */
1646
1647                         /* put in the list */
1648                         list[i].m = (((freq + 24) * 5) + 24000L) * 10000;
1649                         list[i++].e = 1;
1650
1651                         /* Check number. */
1652                         if (i >= max)
1653                                 return (i);
1654                 }
1655
1656         return (i);
1657 }
1658
1659 #ifdef IW_WIRELESS_SPY
1660 /*------------------------------------------------------------------*/
1661 /*
1662  * Gather wireless spy statistics:  for each packet, compare the source
1663  * address with our list, and if they match, get the statistics.
1664  * Sorry, but this function really needs the wireless extensions.
1665  */
1666 static inline void wl_spy_gather(struct net_device * dev,
1667                                  u8 *   mac,    /* MAC address */
1668                                  u8 *   stats)  /* Statistics to gather */
1669 {
1670         struct iw_quality wstats;
1671
1672         wstats.qual = stats[2] & MMR_SGNL_QUAL;
1673         wstats.level = stats[0] & MMR_SIGNAL_LVL;
1674         wstats.noise = stats[1] & MMR_SILENCE_LVL;
1675         wstats.updated = 0x7;
1676
1677         /* Update spy records */
1678         wireless_spy_update(dev, mac, &wstats);
1679 }
1680 #endif /* IW_WIRELESS_SPY */
1681
1682 #ifdef HISTOGRAM
1683 /*------------------------------------------------------------------*/
1684 /*
1685  * This function calculates a histogram of the signal level.
1686  * As the noise is quite constant, it's like doing it on the SNR.
1687  * We have defined a set of interval (lp->his_range), and each time
1688  * the level goes in that interval, we increment the count (lp->his_sum).
1689  * With this histogram you may detect if one WaveLAN is really weak,
1690  * or you may also calculate the mean and standard deviation of the level.
1691  */
1692 static inline void wl_his_gather(struct net_device * dev, u8 * stats)
1693 {                               /* Statistics to gather */
1694         net_local *lp = netdev_priv(dev);
1695         u8 level = stats[0] & MMR_SIGNAL_LVL;
1696         int i;
1697
1698         /* Find the correct interval. */
1699         i = 0;
1700         while ((i < (lp->his_number - 1))
1701                && (level >= lp->his_range[i++]));
1702
1703         /* Increment interval counter. */
1704         (lp->his_sum[i])++;
1705 }
1706 #endif /* HISTOGRAM */
1707
1708 /*------------------------------------------------------------------*/
1709 /*
1710  * Wireless Handler : get protocol name
1711  */
1712 static int wavelan_get_name(struct net_device *dev,
1713                             struct iw_request_info *info,
1714                             union iwreq_data *wrqu,
1715                             char *extra)
1716 {
1717         strcpy(wrqu->name, "WaveLAN");
1718         return 0;
1719 }
1720
1721 /*------------------------------------------------------------------*/
1722 /*
1723  * Wireless Handler : set NWID
1724  */
1725 static int wavelan_set_nwid(struct net_device *dev,
1726                             struct iw_request_info *info,
1727                             union iwreq_data *wrqu,
1728                             char *extra)
1729 {
1730         unsigned long ioaddr = dev->base_addr;
1731         net_local *lp = netdev_priv(dev);       /* lp is not unused */
1732         psa_t psa;
1733         mm_t m;
1734         unsigned long flags;
1735         int ret = 0;
1736
1737         /* Disable interrupts and save flags. */
1738         spin_lock_irqsave(&lp->spinlock, flags);
1739
1740         /* Set NWID in WaveLAN. */
1741         if (!wrqu->nwid.disabled) {
1742                 /* Set NWID in psa */
1743                 psa.psa_nwid[0] = (wrqu->nwid.value & 0xFF00) >> 8;
1744                 psa.psa_nwid[1] = wrqu->nwid.value & 0xFF;
1745                 psa.psa_nwid_select = 0x01;
1746                 psa_write(ioaddr, lp->hacr,
1747                           (char *) psa.psa_nwid - (char *) &psa,
1748                           (unsigned char *) psa.psa_nwid, 3);
1749
1750                 /* Set NWID in mmc. */
1751                 m.w.mmw_netw_id_l = psa.psa_nwid[1];
1752                 m.w.mmw_netw_id_h = psa.psa_nwid[0];
1753                 mmc_write(ioaddr,
1754                           (char *) &m.w.mmw_netw_id_l -
1755                           (char *) &m,
1756                           (unsigned char *) &m.w.mmw_netw_id_l, 2);
1757                 mmc_out(ioaddr, mmwoff(0, mmw_loopt_sel), 0x00);
1758         } else {
1759                 /* Disable NWID in the psa. */
1760                 psa.psa_nwid_select = 0x00;
1761                 psa_write(ioaddr, lp->hacr,
1762                           (char *) &psa.psa_nwid_select -
1763                           (char *) &psa,
1764                           (unsigned char *) &psa.psa_nwid_select,
1765                           1);
1766
1767                 /* Disable NWID in the mmc (no filtering). */
1768                 mmc_out(ioaddr, mmwoff(0, mmw_loopt_sel),
1769                         MMW_LOOPT_SEL_DIS_NWID);
1770         }
1771         /* update the Wavelan checksum */
1772         update_psa_checksum(dev, ioaddr, lp->hacr);
1773
1774         /* Enable interrupts and restore flags. */
1775         spin_unlock_irqrestore(&lp->spinlock, flags);
1776
1777         return ret;
1778 }
1779
1780 /*------------------------------------------------------------------*/
1781 /*
1782  * Wireless Handler : get NWID
1783  */
1784 static int wavelan_get_nwid(struct net_device *dev,
1785                             struct iw_request_info *info,
1786                             union iwreq_data *wrqu,
1787                             char *extra)
1788 {
1789         unsigned long ioaddr = dev->base_addr;
1790         net_local *lp = netdev_priv(dev);       /* lp is not unused */
1791         psa_t psa;
1792         unsigned long flags;
1793         int ret = 0;
1794
1795         /* Disable interrupts and save flags. */
1796         spin_lock_irqsave(&lp->spinlock, flags);
1797
1798         /* Read the NWID. */
1799         psa_read(ioaddr, lp->hacr,
1800                  (char *) psa.psa_nwid - (char *) &psa,
1801                  (unsigned char *) psa.psa_nwid, 3);
1802         wrqu->nwid.value = (psa.psa_nwid[0] << 8) + psa.psa_nwid[1];
1803         wrqu->nwid.disabled = !(psa.psa_nwid_select);
1804         wrqu->nwid.fixed = 1;   /* Superfluous */
1805
1806         /* Enable interrupts and restore flags. */
1807         spin_unlock_irqrestore(&lp->spinlock, flags);
1808
1809         return ret;
1810 }
1811
1812 /*------------------------------------------------------------------*/
1813 /*
1814  * Wireless Handler : set frequency
1815  */
1816 static int wavelan_set_freq(struct net_device *dev,
1817                             struct iw_request_info *info,
1818                             union iwreq_data *wrqu,
1819                             char *extra)
1820 {
1821         unsigned long ioaddr = dev->base_addr;
1822         net_local *lp = netdev_priv(dev);       /* lp is not unused */
1823         unsigned long flags;
1824         int ret;
1825
1826         /* Disable interrupts and save flags. */
1827         spin_lock_irqsave(&lp->spinlock, flags);
1828
1829         /* Attempt to recognise 2.00 cards (2.4 GHz frequency selectable). */
1830         if (!(mmc_in(ioaddr, mmroff(0, mmr_fee_status)) &
1831               (MMR_FEE_STATUS_DWLD | MMR_FEE_STATUS_BUSY)))
1832                 ret = wv_set_frequency(ioaddr, &(wrqu->freq));
1833         else
1834                 ret = -EOPNOTSUPP;
1835
1836         /* Enable interrupts and restore flags. */
1837         spin_unlock_irqrestore(&lp->spinlock, flags);
1838
1839         return ret;
1840 }
1841
1842 /*------------------------------------------------------------------*/
1843 /*
1844  * Wireless Handler : get frequency
1845  */
1846 static int wavelan_get_freq(struct net_device *dev,
1847                             struct iw_request_info *info,
1848                             union iwreq_data *wrqu,
1849                             char *extra)
1850 {
1851         unsigned long ioaddr = dev->base_addr;
1852         net_local *lp = netdev_priv(dev);       /* lp is not unused */
1853         psa_t psa;
1854         unsigned long flags;
1855         int ret = 0;
1856
1857         /* Disable interrupts and save flags. */
1858         spin_lock_irqsave(&lp->spinlock, flags);
1859
1860         /* Attempt to recognise 2.00 cards (2.4 GHz frequency selectable).
1861          * Does it work for everybody, especially old cards? */
1862         if (!(mmc_in(ioaddr, mmroff(0, mmr_fee_status)) &
1863               (MMR_FEE_STATUS_DWLD | MMR_FEE_STATUS_BUSY))) {
1864                 unsigned short freq;
1865
1866                 /* Ask the EEPROM to read the frequency from the first area. */
1867                 fee_read(ioaddr, 0x00, &freq, 1);
1868                 wrqu->freq.m = ((freq >> 5) * 5 + 24000L) * 10000;
1869                 wrqu->freq.e = 1;
1870         } else {
1871                 psa_read(ioaddr, lp->hacr,
1872                          (char *) &psa.psa_subband - (char *) &psa,
1873                          (unsigned char *) &psa.psa_subband, 1);
1874
1875                 if (psa.psa_subband <= 4) {
1876                         wrqu->freq.m = fixed_bands[psa.psa_subband];
1877                         wrqu->freq.e = (psa.psa_subband != 0);
1878                 } else
1879                         ret = -EOPNOTSUPP;
1880         }
1881
1882         /* Enable interrupts and restore flags. */
1883         spin_unlock_irqrestore(&lp->spinlock, flags);
1884
1885         return ret;
1886 }
1887
1888 /*------------------------------------------------------------------*/
1889 /*
1890  * Wireless Handler : set level threshold
1891  */
1892 static int wavelan_set_sens(struct net_device *dev,
1893                             struct iw_request_info *info,
1894                             union iwreq_data *wrqu,
1895                             char *extra)
1896 {
1897         unsigned long ioaddr = dev->base_addr;
1898         net_local *lp = netdev_priv(dev);       /* lp is not unused */
1899         psa_t psa;
1900         unsigned long flags;
1901         int ret = 0;
1902
1903         /* Disable interrupts and save flags. */
1904         spin_lock_irqsave(&lp->spinlock, flags);
1905
1906         /* Set the level threshold. */
1907         /* We should complain loudly if wrqu->sens.fixed = 0, because we
1908          * can't set auto mode... */
1909         psa.psa_thr_pre_set = wrqu->sens.value & 0x3F;
1910         psa_write(ioaddr, lp->hacr,
1911                   (char *) &psa.psa_thr_pre_set - (char *) &psa,
1912                   (unsigned char *) &psa.psa_thr_pre_set, 1);
1913         /* update the Wavelan checksum */
1914         update_psa_checksum(dev, ioaddr, lp->hacr);
1915         mmc_out(ioaddr, mmwoff(0, mmw_thr_pre_set),
1916                 psa.psa_thr_pre_set);
1917
1918         /* Enable interrupts and restore flags. */
1919         spin_unlock_irqrestore(&lp->spinlock, flags);
1920
1921         return ret;
1922 }
1923
1924 /*------------------------------------------------------------------*/
1925 /*
1926  * Wireless Handler : get level threshold
1927  */
1928 static int wavelan_get_sens(struct net_device *dev,
1929                             struct iw_request_info *info,
1930                             union iwreq_data *wrqu,
1931                             char *extra)
1932 {
1933         unsigned long ioaddr = dev->base_addr;
1934         net_local *lp = netdev_priv(dev);       /* lp is not unused */
1935         psa_t psa;
1936         unsigned long flags;
1937         int ret = 0;
1938
1939         /* Disable interrupts and save flags. */
1940         spin_lock_irqsave(&lp->spinlock, flags);
1941
1942         /* Read the level threshold. */
1943         psa_read(ioaddr, lp->hacr,
1944                  (char *) &psa.psa_thr_pre_set - (char *) &psa,
1945                  (unsigned char *) &psa.psa_thr_pre_set, 1);
1946         wrqu->sens.value = psa.psa_thr_pre_set & 0x3F;
1947         wrqu->sens.fixed = 1;
1948
1949         /* Enable interrupts and restore flags. */
1950         spin_unlock_irqrestore(&lp->spinlock, flags);
1951
1952         return ret;
1953 }
1954
1955 /*------------------------------------------------------------------*/
1956 /*
1957  * Wireless Handler : set encryption key
1958  */
1959 static int wavelan_set_encode(struct net_device *dev,
1960                               struct iw_request_info *info,
1961                               union iwreq_data *wrqu,
1962                               char *extra)
1963 {
1964         unsigned long ioaddr = dev->base_addr;
1965         net_local *lp = netdev_priv(dev);       /* lp is not unused */
1966         unsigned long flags;
1967         psa_t psa;
1968         int ret = 0;
1969
1970         /* Disable interrupts and save flags. */
1971         spin_lock_irqsave(&lp->spinlock, flags);
1972
1973         /* Check if capable of encryption */
1974         if (!mmc_encr(ioaddr)) {
1975                 ret = -EOPNOTSUPP;
1976         }
1977
1978         /* Check the size of the key */
1979         if((wrqu->encoding.length != 8) && (wrqu->encoding.length != 0)) {
1980                 ret = -EINVAL;
1981         }
1982
1983         if(!ret) {
1984                 /* Basic checking... */
1985                 if (wrqu->encoding.length == 8) {
1986                         /* Copy the key in the driver */
1987                         memcpy(psa.psa_encryption_key, extra,
1988                                wrqu->encoding.length);
1989                         psa.psa_encryption_select = 1;
1990
1991                         psa_write(ioaddr, lp->hacr,
1992                                   (char *) &psa.psa_encryption_select -
1993                                   (char *) &psa,
1994                                   (unsigned char *) &psa.
1995                                   psa_encryption_select, 8 + 1);
1996
1997                         mmc_out(ioaddr, mmwoff(0, mmw_encr_enable),
1998                                 MMW_ENCR_ENABLE_EN | MMW_ENCR_ENABLE_MODE);
1999                         mmc_write(ioaddr, mmwoff(0, mmw_encr_key),
2000                                   (unsigned char *) &psa.
2001                                   psa_encryption_key, 8);
2002                 }
2003
2004                 /* disable encryption */
2005                 if (wrqu->encoding.flags & IW_ENCODE_DISABLED) {
2006                         psa.psa_encryption_select = 0;
2007                         psa_write(ioaddr, lp->hacr,
2008                                   (char *) &psa.psa_encryption_select -
2009                                   (char *) &psa,
2010                                   (unsigned char *) &psa.
2011                                   psa_encryption_select, 1);
2012
2013                         mmc_out(ioaddr, mmwoff(0, mmw_encr_enable), 0);
2014                 }
2015                 /* update the Wavelan checksum */
2016                 update_psa_checksum(dev, ioaddr, lp->hacr);
2017         }
2018
2019         /* Enable interrupts and restore flags. */
2020         spin_unlock_irqrestore(&lp->spinlock, flags);
2021
2022         return ret;
2023 }
2024
2025 /*------------------------------------------------------------------*/
2026 /*
2027  * Wireless Handler : get encryption key
2028  */
2029 static int wavelan_get_encode(struct net_device *dev,
2030                               struct iw_request_info *info,
2031                               union iwreq_data *wrqu,
2032                               char *extra)
2033 {
2034         unsigned long ioaddr = dev->base_addr;
2035         net_local *lp = netdev_priv(dev);       /* lp is not unused */
2036         psa_t psa;
2037         unsigned long flags;
2038         int ret = 0;
2039
2040         /* Disable interrupts and save flags. */
2041         spin_lock_irqsave(&lp->spinlock, flags);
2042
2043         /* Check if encryption is available */
2044         if (!mmc_encr(ioaddr)) {
2045                 ret = -EOPNOTSUPP;
2046         } else {
2047                 /* Read the encryption key */
2048                 psa_read(ioaddr, lp->hacr,
2049                          (char *) &psa.psa_encryption_select -
2050                          (char *) &psa,
2051                          (unsigned char *) &psa.
2052                          psa_encryption_select, 1 + 8);
2053
2054                 /* encryption is enabled ? */
2055                 if (psa.psa_encryption_select)
2056                         wrqu->encoding.flags = IW_ENCODE_ENABLED;
2057                 else
2058                         wrqu->encoding.flags = IW_ENCODE_DISABLED;
2059                 wrqu->encoding.flags |= mmc_encr(ioaddr);
2060
2061                 /* Copy the key to the user buffer */
2062                 wrqu->encoding.length = 8;
2063                 memcpy(extra, psa.psa_encryption_key, wrqu->encoding.length);
2064         }
2065
2066         /* Enable interrupts and restore flags. */
2067         spin_unlock_irqrestore(&lp->spinlock, flags);
2068
2069         return ret;
2070 }
2071
2072 /*------------------------------------------------------------------*/
2073 /*
2074  * Wireless Handler : get range info
2075  */
2076 static int wavelan_get_range(struct net_device *dev,
2077                              struct iw_request_info *info,
2078                              union iwreq_data *wrqu,
2079                              char *extra)
2080 {
2081         unsigned long ioaddr = dev->base_addr;
2082         net_local *lp = netdev_priv(dev);       /* lp is not unused */
2083         struct iw_range *range = (struct iw_range *) extra;
2084         unsigned long flags;
2085         int ret = 0;
2086
2087         /* Set the length (very important for backward compatibility) */
2088         wrqu->data.length = sizeof(struct iw_range);
2089
2090         /* Set all the info we don't care or don't know about to zero */
2091         memset(range, 0, sizeof(struct iw_range));
2092
2093         /* Set the Wireless Extension versions */
2094         range->we_version_compiled = WIRELESS_EXT;
2095         range->we_version_source = 9;
2096
2097         /* Set information in the range struct.  */
2098         range->throughput = 1.6 * 1000 * 1000;  /* don't argue on this ! */
2099         range->min_nwid = 0x0000;
2100         range->max_nwid = 0xFFFF;
2101
2102         range->sensitivity = 0x3F;
2103         range->max_qual.qual = MMR_SGNL_QUAL;
2104         range->max_qual.level = MMR_SIGNAL_LVL;
2105         range->max_qual.noise = MMR_SILENCE_LVL;
2106         range->avg_qual.qual = MMR_SGNL_QUAL; /* Always max */
2107         /* Need to get better values for those two */
2108         range->avg_qual.level = 30;
2109         range->avg_qual.noise = 8;
2110
2111         range->num_bitrates = 1;
2112         range->bitrate[0] = 2000000;    /* 2 Mb/s */
2113
2114         /* Event capability (kernel + driver) */
2115         range->event_capa[0] = (IW_EVENT_CAPA_MASK(0x8B02) |
2116                                 IW_EVENT_CAPA_MASK(0x8B04));
2117         range->event_capa[1] = IW_EVENT_CAPA_K_1;
2118
2119         /* Disable interrupts and save flags. */
2120         spin_lock_irqsave(&lp->spinlock, flags);
2121
2122         /* Attempt to recognise 2.00 cards (2.4 GHz frequency selectable). */
2123         if (!(mmc_in(ioaddr, mmroff(0, mmr_fee_status)) &
2124               (MMR_FEE_STATUS_DWLD | MMR_FEE_STATUS_BUSY))) {
2125                 range->num_channels = 10;
2126                 range->num_frequency = wv_frequency_list(ioaddr, range->freq,
2127                                                         IW_MAX_FREQUENCIES);
2128         } else
2129                 range->num_channels = range->num_frequency = 0;
2130
2131         /* Encryption supported ? */
2132         if (mmc_encr(ioaddr)) {
2133                 range->encoding_size[0] = 8;    /* DES = 64 bits key */
2134                 range->num_encoding_sizes = 1;
2135                 range->max_encoding_tokens = 1; /* Only one key possible */
2136         } else {
2137                 range->num_encoding_sizes = 0;
2138                 range->max_encoding_tokens = 0;
2139         }
2140
2141         /* Enable interrupts and restore flags. */
2142         spin_unlock_irqrestore(&lp->spinlock, flags);
2143
2144         return ret;
2145 }
2146
2147 /*------------------------------------------------------------------*/
2148 /*
2149  * Wireless Private Handler : set quality threshold
2150  */
2151 static int wavelan_set_qthr(struct net_device *dev,
2152                             struct iw_request_info *info,
2153                             union iwreq_data *wrqu,
2154                             char *extra)
2155 {
2156         unsigned long ioaddr = dev->base_addr;
2157         net_local *lp = netdev_priv(dev);       /* lp is not unused */
2158         psa_t psa;
2159         unsigned long flags;
2160
2161         /* Disable interrupts and save flags. */
2162         spin_lock_irqsave(&lp->spinlock, flags);
2163
2164         psa.psa_quality_thr = *(extra) & 0x0F;
2165         psa_write(ioaddr, lp->hacr,
2166                   (char *) &psa.psa_quality_thr - (char *) &psa,
2167                   (unsigned char *) &psa.psa_quality_thr, 1);
2168         /* update the Wavelan checksum */
2169         update_psa_checksum(dev, ioaddr, lp->hacr);
2170         mmc_out(ioaddr, mmwoff(0, mmw_quality_thr),
2171                 psa.psa_quality_thr);
2172
2173         /* Enable interrupts and restore flags. */
2174         spin_unlock_irqrestore(&lp->spinlock, flags);
2175
2176         return 0;
2177 }
2178
2179 /*------------------------------------------------------------------*/
2180 /*
2181  * Wireless Private Handler : get quality threshold
2182  */
2183 static int wavelan_get_qthr(struct net_device *dev,
2184                             struct iw_request_info *info,
2185                             union iwreq_data *wrqu,
2186                             char *extra)
2187 {
2188         unsigned long ioaddr = dev->base_addr;
2189         net_local *lp = netdev_priv(dev);       /* lp is not unused */
2190         psa_t psa;
2191         unsigned long flags;
2192
2193         /* Disable interrupts and save flags. */
2194         spin_lock_irqsave(&lp->spinlock, flags);
2195
2196         psa_read(ioaddr, lp->hacr,
2197                  (char *) &psa.psa_quality_thr - (char *) &psa,
2198                  (unsigned char *) &psa.psa_quality_thr, 1);
2199         *(extra) = psa.psa_quality_thr & 0x0F;
2200
2201         /* Enable interrupts and restore flags. */
2202         spin_unlock_irqrestore(&lp->spinlock, flags);
2203
2204         return 0;
2205 }
2206
2207 #ifdef HISTOGRAM
2208 /*------------------------------------------------------------------*/
2209 /*
2210  * Wireless Private Handler : set histogram
2211  */
2212 static int wavelan_set_histo(struct net_device *dev,
2213                              struct iw_request_info *info,
2214                              union iwreq_data *wrqu,
2215                              char *extra)
2216 {
2217         net_local *lp = netdev_priv(dev);       /* lp is not unused */
2218
2219         /* Check the number of intervals. */
2220         if (wrqu->data.length > 16) {
2221                 return(-E2BIG);
2222         }
2223
2224         /* Disable histo while we copy the addresses.
2225          * As we don't disable interrupts, we need to do this */
2226         lp->his_number = 0;
2227
2228         /* Are there ranges to copy? */
2229         if (wrqu->data.length > 0) {
2230                 /* Copy interval ranges to the driver */
2231                 memcpy(lp->his_range, extra, wrqu->data.length);
2232
2233                 {
2234                   int i;
2235                   printk(KERN_DEBUG "Histo :");
2236                   for(i = 0; i < wrqu->data.length; i++)
2237                     printk(" %d", lp->his_range[i]);
2238                   printk("\n");
2239                 }
2240
2241                 /* Reset result structure. */
2242                 memset(lp->his_sum, 0x00, sizeof(long) * 16);
2243         }
2244
2245         /* Now we can set the number of ranges */
2246         lp->his_number = wrqu->data.length;
2247
2248         return(0);
2249 }
2250
2251 /*------------------------------------------------------------------*/
2252 /*
2253  * Wireless Private Handler : get histogram
2254  */
2255 static int wavelan_get_histo(struct net_device *dev,
2256                              struct iw_request_info *info,
2257                              union iwreq_data *wrqu,
2258                              char *extra)
2259 {
2260         net_local *lp = netdev_priv(dev);       /* lp is not unused */
2261
2262         /* Set the number of intervals. */
2263         wrqu->data.length = lp->his_number;
2264
2265         /* Give back the distribution statistics */
2266         if(lp->his_number > 0)
2267                 memcpy(extra, lp->his_sum, sizeof(long) * lp->his_number);
2268
2269         return(0);
2270 }
2271 #endif                  /* HISTOGRAM */
2272
2273 /*------------------------------------------------------------------*/
2274 /*
2275  * Structures to export the Wireless Handlers
2276  */
2277
2278 static const iw_handler         wavelan_handler[] =
2279 {
2280         NULL,                           /* SIOCSIWNAME */
2281         wavelan_get_name,               /* SIOCGIWNAME */
2282         wavelan_set_nwid,               /* SIOCSIWNWID */
2283         wavelan_get_nwid,               /* SIOCGIWNWID */
2284         wavelan_set_freq,               /* SIOCSIWFREQ */
2285         wavelan_get_freq,               /* SIOCGIWFREQ */
2286         NULL,                           /* SIOCSIWMODE */
2287         NULL,                           /* SIOCGIWMODE */
2288         wavelan_set_sens,               /* SIOCSIWSENS */
2289         wavelan_get_sens,               /* SIOCGIWSENS */
2290         NULL,                           /* SIOCSIWRANGE */
2291         wavelan_get_range,              /* SIOCGIWRANGE */
2292         NULL,                           /* SIOCSIWPRIV */
2293         NULL,                           /* SIOCGIWPRIV */
2294         NULL,                           /* SIOCSIWSTATS */
2295         NULL,                           /* SIOCGIWSTATS */
2296         iw_handler_set_spy,             /* SIOCSIWSPY */
2297         iw_handler_get_spy,             /* SIOCGIWSPY */
2298         iw_handler_set_thrspy,          /* SIOCSIWTHRSPY */
2299         iw_handler_get_thrspy,          /* SIOCGIWTHRSPY */
2300         NULL,                           /* SIOCSIWAP */
2301         NULL,                           /* SIOCGIWAP */
2302         NULL,                           /* -- hole -- */
2303         NULL,                           /* SIOCGIWAPLIST */
2304         NULL,                           /* -- hole -- */
2305         NULL,                           /* -- hole -- */
2306         NULL,                           /* SIOCSIWESSID */
2307         NULL,                           /* SIOCGIWESSID */
2308         NULL,                           /* SIOCSIWNICKN */
2309         NULL,                           /* SIOCGIWNICKN */
2310         NULL,                           /* -- hole -- */
2311         NULL,                           /* -- hole -- */
2312         NULL,                           /* SIOCSIWRATE */
2313         NULL,                           /* SIOCGIWRATE */
2314         NULL,                           /* SIOCSIWRTS */
2315         NULL,                           /* SIOCGIWRTS */
2316         NULL,                           /* SIOCSIWFRAG */
2317         NULL,                           /* SIOCGIWFRAG */
2318         NULL,                           /* SIOCSIWTXPOW */
2319         NULL,                           /* SIOCGIWTXPOW */
2320         NULL,                           /* SIOCSIWRETRY */
2321         NULL,                           /* SIOCGIWRETRY */
2322         /* Bummer ! Why those are only at the end ??? */
2323         wavelan_set_encode,             /* SIOCSIWENCODE */
2324         wavelan_get_encode,             /* SIOCGIWENCODE */
2325 };
2326
2327 static const iw_handler         wavelan_private_handler[] =
2328 {
2329         wavelan_set_qthr,               /* SIOCIWFIRSTPRIV */
2330         wavelan_get_qthr,               /* SIOCIWFIRSTPRIV + 1 */
2331 #ifdef HISTOGRAM
2332         wavelan_set_histo,              /* SIOCIWFIRSTPRIV + 2 */
2333         wavelan_get_histo,              /* SIOCIWFIRSTPRIV + 3 */
2334 #endif  /* HISTOGRAM */
2335 };
2336
2337 static const struct iw_priv_args wavelan_private_args[] = {
2338 /*{ cmd,         set_args,                            get_args, name } */
2339   { SIOCSIPQTHR, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, 0, "setqualthr" },
2340   { SIOCGIPQTHR, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, "getqualthr" },
2341   { SIOCSIPHISTO, IW_PRIV_TYPE_BYTE | 16,                    0, "sethisto" },
2342   { SIOCGIPHISTO, 0,                     IW_PRIV_TYPE_INT | 16, "gethisto" },
2343 };
2344
2345 static const struct iw_handler_def      wavelan_handler_def =
2346 {
2347         .num_standard   = ARRAY_SIZE(wavelan_handler),
2348         .num_private    = ARRAY_SIZE(wavelan_private_handler),
2349         .num_private_args = ARRAY_SIZE(wavelan_private_args),
2350         .standard       = wavelan_handler,
2351         .private        = wavelan_private_handler,
2352         .private_args   = wavelan_private_args,
2353         .get_wireless_stats = wavelan_get_wireless_stats,
2354 };
2355
2356 /*------------------------------------------------------------------*/
2357 /*
2358  * Get wireless statistics.
2359  * Called by /proc/net/wireless
2360  */
2361 static iw_stats *wavelan_get_wireless_stats(struct net_device * dev)
2362 {
2363         unsigned long ioaddr = dev->base_addr;
2364         net_local *lp = netdev_priv(dev);
2365         mmr_t m;
2366         iw_stats *wstats;
2367         unsigned long flags;
2368
2369 #ifdef DEBUG_IOCTL_TRACE
2370         printk(KERN_DEBUG "%s: ->wavelan_get_wireless_stats()\n",
2371                dev->name);
2372 #endif
2373
2374         /* Check */
2375         if (lp == (net_local *) NULL)
2376                 return (iw_stats *) NULL;
2377
2378         /* Disable interrupts and save flags. */
2379         spin_lock_irqsave(&lp->spinlock, flags);
2380
2381         wstats = &lp->wstats;
2382
2383         /* Get data from the mmc. */
2384         mmc_out(ioaddr, mmwoff(0, mmw_freeze), 1);
2385
2386         mmc_read(ioaddr, mmroff(0, mmr_dce_status), &m.mmr_dce_status, 1);
2387         mmc_read(ioaddr, mmroff(0, mmr_wrong_nwid_l), &m.mmr_wrong_nwid_l,
2388                  2);
2389         mmc_read(ioaddr, mmroff(0, mmr_thr_pre_set), &m.mmr_thr_pre_set,
2390                  4);
2391
2392         mmc_out(ioaddr, mmwoff(0, mmw_freeze), 0);
2393
2394         /* Copy data to wireless stuff. */
2395         wstats->status = m.mmr_dce_status & MMR_DCE_STATUS;
2396         wstats->qual.qual = m.mmr_sgnl_qual & MMR_SGNL_QUAL;
2397         wstats->qual.level = m.mmr_signal_lvl & MMR_SIGNAL_LVL;
2398         wstats->qual.noise = m.mmr_silence_lvl & MMR_SILENCE_LVL;
2399         wstats->qual.updated = (((m. mmr_signal_lvl & MMR_SIGNAL_LVL_VALID) >> 7)
2400                         | ((m.mmr_signal_lvl & MMR_SIGNAL_LVL_VALID) >> 6)
2401                         | ((m.mmr_silence_lvl & MMR_SILENCE_LVL_VALID) >> 5));
2402         wstats->discard.nwid += (m.mmr_wrong_nwid_h << 8) | m.mmr_wrong_nwid_l;
2403         wstats->discard.code = 0L;
2404         wstats->discard.misc = 0L;
2405
2406         /* Enable interrupts and restore flags. */
2407         spin_unlock_irqrestore(&lp->spinlock, flags);
2408
2409 #ifdef DEBUG_IOCTL_TRACE
2410         printk(KERN_DEBUG "%s: <-wavelan_get_wireless_stats()\n",
2411                dev->name);
2412 #endif
2413         return &lp->wstats;
2414 }
2415
2416 /************************* PACKET RECEPTION *************************/
2417 /*
2418  * This part deals with receiving the packets.
2419  * The interrupt handler gets an interrupt when a packet has been
2420  * successfully received and calls this part.
2421  */
2422
2423 /*------------------------------------------------------------------*/
2424 /*
2425  * This routine does the actual copying of data (including the Ethernet
2426  * header structure) from the WaveLAN card to an sk_buff chain that
2427  * will be passed up to the network interface layer. NOTE: we
2428  * currently don't handle trailer protocols (neither does the rest of
2429  * the network interface), so if that is needed, it will (at least in
2430  * part) be added here.  The contents of the receive ring buffer are
2431  * copied to a message chain that is then passed to the kernel.
2432  *
2433  * Note: if any errors occur, the packet is "dropped on the floor".
2434  * (called by wv_packet_rcv())
2435  */
2436 static void
2437 wv_packet_read(struct net_device * dev, u16 buf_off, int sksize)
2438 {
2439         net_local *lp = netdev_priv(dev);
2440         unsigned long ioaddr = dev->base_addr;
2441         struct sk_buff *skb;
2442
2443 #ifdef DEBUG_RX_TRACE
2444         printk(KERN_DEBUG "%s: ->wv_packet_read(0x%X, %d)\n",
2445                dev->name, buf_off, sksize);
2446 #endif
2447
2448         /* Allocate buffer for the data */
2449         if ((skb = dev_alloc_skb(sksize)) == (struct sk_buff *) NULL) {
2450 #ifdef DEBUG_RX_ERROR
2451                 printk(KERN_INFO
2452                        "%s: wv_packet_read(): could not alloc_skb(%d, GFP_ATOMIC).\n",
2453                        dev->name, sksize);
2454 #endif
2455                 dev->stats.rx_dropped++;
2456                 return;
2457         }
2458
2459         /* Copy the packet to the buffer. */
2460         obram_read(ioaddr, buf_off, skb_put(skb, sksize), sksize);
2461         skb->protocol = eth_type_trans(skb, dev);
2462
2463 #ifdef DEBUG_RX_INFO
2464         wv_packet_info(skb_mac_header(skb), sksize, dev->name,
2465                        "wv_packet_read");
2466 #endif                          /* DEBUG_RX_INFO */
2467
2468         /* Statistics-gathering and associated stuff.
2469          * It seem a bit messy with all the define, but it's really
2470          * simple... */
2471         if (
2472 #ifdef IW_WIRELESS_SPY          /* defined in iw_handler.h */
2473                    (lp->spy_data.spy_number > 0) ||
2474 #endif /* IW_WIRELESS_SPY */
2475 #ifdef HISTOGRAM
2476                    (lp->his_number > 0) ||
2477 #endif /* HISTOGRAM */
2478                    0) {
2479                 u8 stats[3];    /* signal level, noise level, signal quality */
2480
2481                 /* Read signal level, silence level and signal quality bytes */
2482                 /* Note: in the PCMCIA hardware, these are part of the frame.
2483                  * It seems that for the ISA hardware, it's nowhere to be
2484                  * found in the frame, so I'm obliged to do this (it has a
2485                  * side effect on /proc/net/wireless).
2486                  * Any ideas?
2487                  */
2488                 mmc_out(ioaddr, mmwoff(0, mmw_freeze), 1);
2489                 mmc_read(ioaddr, mmroff(0, mmr_signal_lvl), stats, 3);
2490                 mmc_out(ioaddr, mmwoff(0, mmw_freeze), 0);
2491
2492 #ifdef DEBUG_RX_INFO
2493                 printk(KERN_DEBUG
2494                        "%s: wv_packet_read(): Signal level %d/63, Silence level %d/63, signal quality %d/16\n",
2495                        dev->name, stats[0] & 0x3F, stats[1] & 0x3F,
2496                        stats[2] & 0x0F);
2497 #endif
2498
2499                 /* Spying stuff */
2500 #ifdef IW_WIRELESS_SPY
2501                 wl_spy_gather(dev, skb_mac_header(skb) + WAVELAN_ADDR_SIZE,
2502                               stats);
2503 #endif /* IW_WIRELESS_SPY */
2504 #ifdef HISTOGRAM
2505                 wl_his_gather(dev, stats);
2506 #endif /* HISTOGRAM */
2507         }
2508
2509         /*
2510          * Hand the packet to the network module.
2511          */
2512         netif_rx(skb);
2513
2514         /* Keep statistics up to date */
2515         dev->stats.rx_packets++;
2516         dev->stats.rx_bytes += sksize;
2517
2518 #ifdef DEBUG_RX_TRACE
2519         printk(KERN_DEBUG "%s: <-wv_packet_read()\n", dev->name);
2520 #endif
2521 }
2522
2523 /*------------------------------------------------------------------*/
2524 /*
2525  * Transfer as many packets as we can
2526  * from the device RAM.
2527  * (called in wavelan_interrupt()).
2528  * Note : the spinlock is already grabbed for us.
2529  */
2530 static void wv_receive(struct net_device * dev)
2531 {
2532         unsigned long ioaddr = dev->base_addr;
2533         net_local *lp = netdev_priv(dev);
2534         fd_t fd;
2535         rbd_t rbd;
2536         int nreaped = 0;
2537
2538 #ifdef DEBUG_RX_TRACE
2539         printk(KERN_DEBUG "%s: ->wv_receive()\n", dev->name);
2540 #endif
2541
2542         /* Loop on each received packet. */
2543         for (;;) {
2544                 obram_read(ioaddr, lp->rx_head, (unsigned char *) &fd,
2545                            sizeof(fd));
2546
2547                 /* Note about the status :
2548                  * It start up to be 0 (the value we set). Then, when the RU
2549                  * grab the buffer to prepare for reception, it sets the
2550                  * FD_STATUS_B flag. When the RU has finished receiving the
2551                  * frame, it clears FD_STATUS_B, set FD_STATUS_C to indicate
2552                  * completion and set the other flags to indicate the eventual
2553                  * errors. FD_STATUS_OK indicates that the reception was OK.
2554                  */
2555
2556                 /* If the current frame is not complete, we have reached the end. */
2557                 if ((fd.fd_status & FD_STATUS_C) != FD_STATUS_C)
2558                         break;  /* This is how we exit the loop. */
2559
2560                 nreaped++;
2561
2562                 /* Check whether frame was correctly received. */
2563                 if ((fd.fd_status & FD_STATUS_OK) == FD_STATUS_OK) {
2564                         /* Does the frame contain a pointer to the data?  Let's check. */
2565                         if (fd.fd_rbd_offset != I82586NULL) {
2566                                 /* Read the receive buffer descriptor */
2567                                 obram_read(ioaddr, fd.fd_rbd_offset,
2568                                            (unsigned char *) &rbd,
2569                                            sizeof(rbd));
2570
2571 #ifdef DEBUG_RX_ERROR
2572                                 if ((rbd.rbd_status & RBD_STATUS_EOF) !=
2573                                     RBD_STATUS_EOF) printk(KERN_INFO
2574                                                            "%s: wv_receive(): missing EOF flag.\n",
2575                                                            dev->name);
2576
2577                                 if ((rbd.rbd_status & RBD_STATUS_F) !=
2578                                     RBD_STATUS_F) printk(KERN_INFO
2579                                                          "%s: wv_receive(): missing F flag.\n",
2580                                                          dev->name);
2581 #endif                          /* DEBUG_RX_ERROR */
2582
2583                                 /* Read the packet and transmit to Linux */
2584                                 wv_packet_read(dev, rbd.rbd_bufl,
2585                                                rbd.
2586                                                rbd_status &
2587                                                RBD_STATUS_ACNT);
2588                         }
2589 #ifdef DEBUG_RX_ERROR
2590                         else    /* if frame has no data */
2591                                 printk(KERN_INFO
2592                                        "%s: wv_receive(): frame has no data.\n",
2593                                        dev->name);
2594 #endif
2595                 } else {        /* If reception was no successful */
2596
2597                         dev->stats.rx_errors++;
2598
2599 #ifdef DEBUG_RX_INFO
2600                         printk(KERN_DEBUG
2601                                "%s: wv_receive(): frame not received successfully (%X).\n",
2602                                dev->name, fd.fd_status);
2603 #endif
2604
2605 #ifdef DEBUG_RX_ERROR
2606                         if ((fd.fd_status & FD_STATUS_S6) != 0)
2607                                 printk(KERN_INFO
2608                                        "%s: wv_receive(): no EOF flag.\n",
2609                                        dev->name);
2610 #endif
2611
2612                         if ((fd.fd_status & FD_STATUS_S7) != 0) {
2613                                 dev->stats.rx_length_errors++;
2614 #ifdef DEBUG_RX_FAIL
2615                                 printk(KERN_DEBUG
2616                                        "%s: wv_receive(): frame too short.\n",
2617                                        dev->name);
2618 #endif
2619                         }
2620
2621                         if ((fd.fd_status & FD_STATUS_S8) != 0) {
2622                                 dev->stats.rx_over_errors++;
2623 #ifdef DEBUG_RX_FAIL
2624                                 printk(KERN_DEBUG
2625                                        "%s: wv_receive(): rx DMA overrun.\n",
2626                                        dev->name);
2627 #endif
2628                         }
2629
2630                         if ((fd.fd_status & FD_STATUS_S9) != 0) {
2631                                 dev->stats.rx_fifo_errors++;
2632 #ifdef DEBUG_RX_FAIL
2633                                 printk(KERN_DEBUG
2634                                        "%s: wv_receive(): ran out of resources.\n",
2635                                        dev->name);
2636 #endif
2637                         }
2638
2639                         if ((fd.fd_status & FD_STATUS_S10) != 0) {
2640                                 dev->stats.rx_frame_errors++;
2641 #ifdef DEBUG_RX_FAIL
2642                                 printk(KERN_DEBUG
2643                                        "%s: wv_receive(): alignment error.\n",
2644                                        dev->name);
2645 #endif
2646                         }
2647
2648                         if ((fd.fd_status & FD_STATUS_S11) != 0) {
2649                                 dev->stats.rx_crc_errors++;
2650 #ifdef DEBUG_RX_FAIL
2651                                 printk(KERN_DEBUG
2652                                        "%s: wv_receive(): CRC error.\n",
2653                                        dev->name);
2654 #endif
2655                         }
2656                 }
2657
2658                 fd.fd_status = 0;
2659                 obram_write(ioaddr, fdoff(lp->rx_head, fd_status),
2660                             (unsigned char *) &fd.fd_status,
2661                             sizeof(fd.fd_status));
2662
2663                 fd.fd_command = FD_COMMAND_EL;
2664                 obram_write(ioaddr, fdoff(lp->rx_head, fd_command),
2665                             (unsigned char *) &fd.fd_command,
2666                             sizeof(fd.fd_command));
2667
2668                 fd.fd_command = 0;
2669                 obram_write(ioaddr, fdoff(lp->rx_last, fd_command),
2670                             (unsigned char *) &fd.fd_command,
2671                             sizeof(fd.fd_command));
2672
2673                 lp->rx_last = lp->rx_head;
2674                 lp->rx_head = fd.fd_link_offset;
2675         }                       /* for(;;) -> loop on all frames */
2676
2677 #ifdef DEBUG_RX_INFO
2678         if (nreaped > 1)
2679                 printk(KERN_DEBUG "%s: wv_receive(): reaped %d\n",
2680                        dev->name, nreaped);
2681 #endif
2682 #ifdef DEBUG_RX_TRACE
2683         printk(KERN_DEBUG "%s: <-wv_receive()\n", dev->name);
2684 #endif
2685 }
2686
2687 /*********************** PACKET TRANSMISSION ***********************/
2688 /*
2689  * This part deals with sending packets through the WaveLAN.
2690  *
2691  */
2692
2693 /*------------------------------------------------------------------*/
2694 /*
2695  * This routine fills in the appropriate registers and memory
2696  * locations on the WaveLAN card and starts the card off on
2697  * the transmit.
2698  *
2699  * The principle:
2700  * Each block contains a transmit command, a NOP command,
2701  * a transmit block descriptor and a buffer.
2702  * The CU read the transmit block which point to the tbd,
2703  * read the tbd and the content of the buffer.
2704  * When it has finish with it, it goes to the next command
2705  * which in our case is the NOP. The NOP points on itself,
2706  * so the CU stop here.
2707  * When we add the next block, we modify the previous nop
2708  * to make it point on the new tx command.
2709  * Simple, isn't it ?
2710  *
2711  * (called in wavelan_packet_xmit())
2712  */
2713 static int wv_packet_write(struct net_device * dev, void *buf, short length)
2714 {
2715         net_local *lp = netdev_priv(dev);
2716         unsigned long ioaddr = dev->base_addr;
2717         unsigned short txblock;
2718         unsigned short txpred;
2719         unsigned short tx_addr;
2720         unsigned short nop_addr;
2721         unsigned short tbd_addr;
2722         unsigned short buf_addr;
2723         ac_tx_t tx;
2724         ac_nop_t nop;
2725         tbd_t tbd;
2726         int clen = length;
2727         unsigned long flags;
2728
2729 #ifdef DEBUG_TX_TRACE
2730         printk(KERN_DEBUG "%s: ->wv_packet_write(%d)\n", dev->name,
2731                length);
2732 #endif
2733
2734         spin_lock_irqsave(&lp->spinlock, flags);
2735
2736         /* Check nothing bad has happened */
2737         if (lp->tx_n_in_use == (NTXBLOCKS - 1)) {
2738 #ifdef DEBUG_TX_ERROR
2739                 printk(KERN_INFO "%s: wv_packet_write(): Tx queue full.\n",
2740                        dev->name);
2741 #endif
2742                 spin_unlock_irqrestore(&lp->spinlock, flags);
2743                 return 1;
2744         }
2745
2746         /* Calculate addresses of next block and previous block. */
2747         txblock = lp->tx_first_free;
2748         txpred = txblock - TXBLOCKZ;
2749         if (txpred < OFFSET_CU)
2750                 txpred += NTXBLOCKS * TXBLOCKZ;
2751         lp->tx_first_free += TXBLOCKZ;
2752         if (lp->tx_first_free >= OFFSET_CU + NTXBLOCKS * TXBLOCKZ)
2753                 lp->tx_first_free -= NTXBLOCKS * TXBLOCKZ;
2754
2755         lp->tx_n_in_use++;
2756
2757         /* Calculate addresses of the different parts of the block. */
2758         tx_addr = txblock;
2759         nop_addr = tx_addr + sizeof(tx);
2760         tbd_addr = nop_addr + sizeof(nop);
2761         buf_addr = tbd_addr + sizeof(tbd);
2762
2763         /*
2764          * Transmit command
2765          */
2766         tx.tx_h.ac_status = 0;
2767         obram_write(ioaddr, toff(ac_tx_t, tx_addr, tx_h.ac_status),
2768                     (unsigned char *) &tx.tx_h.ac_status,
2769                     sizeof(tx.tx_h.ac_status));
2770
2771         /*
2772          * NOP command
2773          */
2774         nop.nop_h.ac_status = 0;
2775         obram_write(ioaddr, toff(ac_nop_t, nop_addr, nop_h.ac_status),
2776                     (unsigned char *) &nop.nop_h.ac_status,
2777                     sizeof(nop.nop_h.ac_status));
2778         nop.nop_h.ac_link = nop_addr;
2779         obram_write(ioaddr, toff(ac_nop_t, nop_addr, nop_h.ac_link),
2780                     (unsigned char *) &nop.nop_h.ac_link,
2781                     sizeof(nop.nop_h.ac_link));
2782
2783         /*
2784          * Transmit buffer descriptor
2785          */
2786         tbd.tbd_status = TBD_STATUS_EOF | (TBD_STATUS_ACNT & clen);
2787         tbd.tbd_next_bd_offset = I82586NULL;
2788         tbd.tbd_bufl = buf_addr;
2789         tbd.tbd_bufh = 0;
2790         obram_write(ioaddr, tbd_addr, (unsigned char *) &tbd, sizeof(tbd));
2791
2792         /*
2793          * Data
2794          */
2795         obram_write(ioaddr, buf_addr, buf, length);
2796
2797         /*
2798          * Overwrite the predecessor NOP link
2799          * so that it points to this txblock.
2800          */
2801         nop_addr = txpred + sizeof(tx);
2802         nop.nop_h.ac_status = 0;
2803         obram_write(ioaddr, toff(ac_nop_t, nop_addr, nop_h.ac_status),
2804                     (unsigned char *) &nop.nop_h.ac_status,
2805                     sizeof(nop.nop_h.ac_status));
2806         nop.nop_h.ac_link = txblock;
2807         obram_write(ioaddr, toff(ac_nop_t, nop_addr, nop_h.ac_link),
2808                     (unsigned char *) &nop.nop_h.ac_link,
2809                     sizeof(nop.nop_h.ac_link));
2810
2811         /* Make sure the watchdog will keep quiet for a while */
2812         dev->trans_start = jiffies;
2813
2814         /* Keep stats up to date. */
2815         dev->stats.tx_bytes += length;
2816
2817         if (lp->tx_first_in_use == I82586NULL)
2818                 lp->tx_first_in_use = txblock;
2819
2820         if (lp->tx_n_in_use < NTXBLOCKS - 1)
2821                 netif_wake_queue(dev);
2822
2823         spin_unlock_irqrestore(&lp->spinlock, flags);
2824
2825 #ifdef DEBUG_TX_INFO
2826         wv_packet_info((u8 *) buf, length, dev->name,
2827                        "wv_packet_write");
2828 #endif                          /* DEBUG_TX_INFO */
2829
2830 #ifdef DEBUG_TX_TRACE
2831         printk(KERN_DEBUG "%s: <-wv_packet_write()\n", dev->name);
2832 #endif
2833
2834         return 0;
2835 }
2836
2837 /*------------------------------------------------------------------*/
2838 /*
2839  * This routine is called when we want to send a packet (NET3 callback)
2840  * In this routine, we check if the harware is ready to accept
2841  * the packet.  We also prevent reentrance.  Then we call the function
2842  * to send the packet.
2843  */
2844 static int wavelan_packet_xmit(struct sk_buff *skb, struct net_device * dev)
2845 {
2846         net_local *lp = netdev_priv(dev);
2847         unsigned long flags;
2848         char data[ETH_ZLEN];
2849
2850 #ifdef DEBUG_TX_TRACE
2851         printk(KERN_DEBUG "%s: ->wavelan_packet_xmit(0x%X)\n", dev->name,
2852                (unsigned) skb);
2853 #endif
2854
2855         /*
2856          * Block a timer-based transmit from overlapping.
2857          * In other words, prevent reentering this routine.
2858          */
2859         netif_stop_queue(dev);
2860
2861         /* If somebody has asked to reconfigure the controller,
2862          * we can do it now.
2863          */
2864         if (lp->reconfig_82586) {
2865                 spin_lock_irqsave(&lp->spinlock, flags);
2866                 wv_82586_config(dev);
2867                 spin_unlock_irqrestore(&lp->spinlock, flags);
2868                 /* Check that we can continue */
2869                 if (lp->tx_n_in_use == (NTXBLOCKS - 1))
2870                         return 1;
2871         }
2872 #ifdef DEBUG_TX_ERROR
2873         if (skb->next)
2874                 printk(KERN_INFO "skb has next\n");
2875 #endif
2876
2877         /* Do we need some padding? */
2878         /* Note : on wireless the propagation time is in the order of 1us,
2879          * and we don't have the Ethernet specific requirement of beeing
2880          * able to detect collisions, therefore in theory we don't really
2881          * need to pad. Jean II */
2882         if (skb->len < ETH_ZLEN) {
2883                 memset(data, 0, ETH_ZLEN);
2884                 skb_copy_from_linear_data(skb, data, skb->len);
2885                 /* Write packet on the card */
2886                 if(wv_packet_write(dev, data, ETH_ZLEN))
2887                         return 1;       /* We failed */
2888         }
2889         else if(wv_packet_write(dev, skb->data, skb->len))
2890                 return 1;       /* We failed */
2891
2892
2893         dev_kfree_skb(skb);
2894
2895 #ifdef DEBUG_TX_TRACE
2896         printk(KERN_DEBUG "%s: <-wavelan_packet_xmit()\n", dev->name);
2897 #endif
2898         return 0;
2899 }
2900
2901 /*********************** HARDWARE CONFIGURATION ***********************/
2902 /*
2903  * This part does the real job of starting and configuring the hardware.
2904  */
2905
2906 /*--------------------------------------------------------------------*/
2907 /*
2908  * Routine to initialize the Modem Management Controller.
2909  * (called by wv_hw_reset())
2910  */
2911 static int wv_mmc_init(struct net_device * dev)
2912 {
2913         unsigned long ioaddr = dev->base_addr;
2914         net_local *lp = netdev_priv(dev);
2915         psa_t psa;
2916         mmw_t m;
2917         int configured;
2918
2919 #ifdef DEBUG_CONFIG_TRACE
2920         printk(KERN_DEBUG "%s: ->wv_mmc_init()\n", dev->name);
2921 #endif
2922
2923         /* Read the parameter storage area. */
2924         psa_read(ioaddr, lp->hacr, 0, (unsigned char *) &psa, sizeof(psa));
2925
2926 #ifdef USE_PSA_CONFIG
2927         configured = psa.psa_conf_status & 1;
2928 #else
2929         configured = 0;
2930 #endif
2931
2932         /* Is the PSA is not configured */
2933         if (!configured) {
2934                 /* User will be able to configure NWID later (with iwconfig). */
2935                 psa.psa_nwid[0] = 0;
2936                 psa.psa_nwid[1] = 0;
2937
2938                 /* no NWID checking since NWID is not set */
2939                 psa.psa_nwid_select = 0;
2940
2941                 /* Disable encryption */
2942                 psa.psa_encryption_select = 0;
2943
2944                 /* Set to standard values:
2945                  * 0x04 for AT,
2946                  * 0x01 for MCA,
2947                  * 0x04 for PCMCIA and 2.00 card (AT&T 407-024689/E document)
2948                  */
2949                 if (psa.psa_comp_number & 1)
2950                         psa.psa_thr_pre_set = 0x01;
2951                 else
2952                         psa.psa_thr_pre_set = 0x04;
2953                 psa.psa_quality_thr = 0x03;
2954
2955                 /* It is configured */
2956                 psa.psa_conf_status |= 1;
2957
2958 #ifdef USE_PSA_CONFIG
2959                 /* Write the psa. */
2960                 psa_write(ioaddr, lp->hacr,
2961                           (char *) psa.psa_nwid - (char *) &psa,
2962                           (unsigned char *) psa.psa_nwid, 4);
2963                 psa_write(ioaddr, lp->hacr,
2964                           (char *) &psa.psa_thr_pre_set - (char *) &psa,
2965                           (unsigned char *) &psa.psa_thr_pre_set, 1);
2966                 psa_write(ioaddr, lp->hacr,
2967                           (char *) &psa.psa_quality_thr - (char *) &psa,
2968                           (unsigned char *) &psa.psa_quality_thr, 1);
2969                 psa_write(ioaddr, lp->hacr,
2970                           (char *) &psa.psa_conf_status - (char *) &psa,
2971                           (unsigned char *) &psa.psa_conf_status, 1);
2972                 /* update the Wavelan checksum */
2973                 update_psa_checksum(dev, ioaddr, lp->hacr);
2974 #endif
2975         }
2976
2977         /* Zero the mmc structure. */
2978         memset(&m, 0x00, sizeof(m));
2979
2980         /* Copy PSA info to the mmc. */
2981         m.mmw_netw_id_l = psa.psa_nwid[1];
2982         m.mmw_netw_id_h = psa.psa_nwid[0];
2983
2984         if (psa.psa_nwid_select & 1)
2985                 m.mmw_loopt_sel = 0x00;
2986         else
2987                 m.mmw_loopt_sel = MMW_LOOPT_SEL_DIS_NWID;
2988
2989         memcpy(&m.mmw_encr_key, &psa.psa_encryption_key,
2990                sizeof(m.mmw_encr_key));
2991
2992         if (psa.psa_encryption_select)
2993                 m.mmw_encr_enable =
2994                     MMW_ENCR_ENABLE_EN | MMW_ENCR_ENABLE_MODE;
2995         else
2996                 m.mmw_encr_enable = 0;
2997
2998         m.mmw_thr_pre_set = psa.psa_thr_pre_set & 0x3F;
2999         m.mmw_quality_thr = psa.psa_quality_thr & 0x0F;
3000
3001         /*
3002          * Set default modem control parameters.
3003          * See NCR document 407-0024326 Rev. A.
3004          */
3005         m.mmw_jabber_enable = 0x01;
3006         m.mmw_freeze = 0;
3007         m.mmw_anten_sel = MMW_ANTEN_SEL_ALG_EN;
3008         m.mmw_ifs = 0x20;
3009         m.mmw_mod_delay = 0x04;
3010         m.mmw_jam_time = 0x38;
3011
3012         m.mmw_des_io_invert = 0;
3013         m.mmw_decay_prm = 0;
3014         m.mmw_decay_updat_prm = 0;
3015
3016         /* Write all info to MMC. */
3017         mmc_write(ioaddr, 0, (u8 *) & m, sizeof(m));
3018
3019         /* The following code starts the modem of the 2.00 frequency
3020          * selectable cards at power on.  It's not strictly needed for the
3021          * following boots.
3022          * The original patch was by Joe Finney for the PCMCIA driver, but
3023          * I've cleaned it up a bit and added documentation.
3024          * Thanks to Loeke Brederveld from Lucent for the info.
3025          */
3026
3027         /* Attempt to recognise 2.00 cards (2.4 GHz frequency selectable)
3028          * Does it work for everybody, especially old cards? */
3029         /* Note: WFREQSEL verifies that it is able to read a sensible
3030          * frequency from EEPROM (address 0x00) and that MMR_FEE_STATUS_ID
3031          * is 0xA (Xilinx version) or 0xB (Ariadne version).
3032          * My test is more crude but does work. */
3033         if (!(mmc_in(ioaddr, mmroff(0, mmr_fee_status)) &
3034               (MMR_FEE_STATUS_DWLD | MMR_FEE_STATUS_BUSY))) {
3035                 /* We must download the frequency parameters to the
3036                  * synthesizers (from the EEPROM - area 1)
3037                  * Note: as the EEPROM is automatically decremented, we set the end
3038                  * if the area... */
3039                 m.mmw_fee_addr = 0x0F;
3040                 m.mmw_fee_ctrl = MMW_FEE_CTRL_READ | MMW_FEE_CTRL_DWLD;
3041                 mmc_write(ioaddr, (char *) &m.mmw_fee_ctrl - (char *) &m,
3042                           (unsigned char *) &m.mmw_fee_ctrl, 2);
3043
3044                 /* Wait until the download is finished. */
3045                 fee_wait(ioaddr, 100, 100);
3046
3047 #ifdef DEBUG_CONFIG_INFO
3048                 /* The frequency was in the last word downloaded. */
3049                 mmc_read(ioaddr, (char *) &m.mmw_fee_data_l - (char *) &m,
3050                          (unsigned char *) &m.mmw_fee_data_l, 2);
3051
3052                 /* Print some info for the user. */
3053                 printk(KERN_DEBUG
3054                        "%s: WaveLAN 2.00 recognised (frequency select).  Current frequency = %ld\n",
3055                        dev->name,
3056                        ((m.
3057                          mmw_fee_data_h << 4) | (m.mmw_fee_data_l >> 4)) *
3058                        5 / 2 + 24000L);
3059 #endif
3060
3061                 /* We must now download the power adjust value (gain) to
3062                  * the synthesizers (from the EEPROM - area 7 - DAC). */
3063                 m.mmw_fee_addr = 0x61;
3064                 m.mmw_fee_ctrl = MMW_FEE_CTRL_READ | MMW_FEE_CTRL_DWLD;
3065                 mmc_write(ioaddr, (char *) &m.mmw_fee_ctrl - (char *) &m,
3066                           (unsigned char *) &m.mmw_fee_ctrl, 2);
3067
3068                 /* Wait until the download is finished. */
3069         }
3070         /* if 2.00 card */
3071 #ifdef DEBUG_CONFIG_TRACE
3072         printk(KERN_DEBUG "%s: <-wv_mmc_init()\n", dev->name);
3073 #endif
3074         return 0;
3075 }
3076
3077 /*------------------------------------------------------------------*/
3078 /*
3079  * Construct the fd and rbd structures.
3080  * Start the receive unit.
3081  * (called by wv_hw_reset())
3082  */
3083 static int wv_ru_start(struct net_device * dev)
3084 {
3085         net_local *lp = netdev_priv(dev);
3086         unsigned long ioaddr = dev->base_addr;
3087         u16 scb_cs;
3088         fd_t fd;
3089         rbd_t rbd;
3090         u16 rx;
3091         u16 rx_next;
3092         int i;
3093
3094 #ifdef DEBUG_CONFIG_TRACE
3095         printk(KERN_DEBUG "%s: ->wv_ru_start()\n", dev->name);
3096 #endif
3097
3098         obram_read(ioaddr, scboff(OFFSET_SCB, scb_status),
3099                    (unsigned char *) &scb_cs, sizeof(scb_cs));
3100         if ((scb_cs & SCB_ST_RUS) == SCB_ST_RUS_RDY)
3101                 return 0;
3102
3103         lp->rx_head = OFFSET_RU;
3104
3105         for (i = 0, rx = lp->rx_head; i < NRXBLOCKS; i++, rx = rx_next) {
3106                 rx_next =
3107                     (i == NRXBLOCKS - 1) ? lp->rx_head : rx + RXBLOCKZ;
3108
3109                 fd.fd_status = 0;
3110                 fd.fd_command = (i == NRXBLOCKS - 1) ? FD_COMMAND_EL : 0;
3111                 fd.fd_link_offset = rx_next;
3112                 fd.fd_rbd_offset = rx + sizeof(fd);
3113                 obram_write(ioaddr, rx, (unsigned char *) &fd, sizeof(fd));
3114
3115                 rbd.rbd_status = 0;
3116                 rbd.rbd_next_rbd_offset = I82586NULL;
3117                 rbd.rbd_bufl = rx + sizeof(fd) + sizeof(rbd);
3118                 rbd.rbd_bufh = 0;
3119                 rbd.rbd_el_size = RBD_EL | (RBD_SIZE & MAXDATAZ);
3120                 obram_write(ioaddr, rx + sizeof(fd),
3121                             (unsigned char *) &rbd, sizeof(rbd));
3122
3123                 lp->rx_last = rx;
3124         }
3125
3126         obram_write(ioaddr, scboff(OFFSET_SCB, scb_rfa_offset),
3127                     (unsigned char *) &lp->rx_head, sizeof(lp->rx_head));
3128
3129         scb_cs = SCB_CMD_RUC_GO;
3130         obram_write(ioaddr, scboff(OFFSET_SCB, scb_command),
3131                     (unsigned char *) &scb_cs, sizeof(scb_cs));
3132
3133         set_chan_attn(ioaddr, lp->hacr);
3134
3135         for (i = 1000; i > 0; i--) {
3136                 obram_read(ioaddr, scboff(OFFSET_SCB, scb_command),
3137                            (unsigned char *) &scb_cs, sizeof(scb_cs));
3138                 if (scb_cs == 0)
3139                         break;
3140
3141                 udelay(10);
3142         }
3143
3144         if (i <= 0) {
3145 #ifdef DEBUG_CONFIG_ERROR
3146                 printk(KERN_INFO
3147                        "%s: wavelan_ru_start(): board not accepting command.\n",
3148                        dev->name);
3149 #endif
3150                 return -1;
3151         }
3152 #ifdef DEBUG_CONFIG_TRACE
3153         printk(KERN_DEBUG "%s: <-wv_ru_start()\n", dev->name);
3154 #endif
3155         return 0;
3156 }
3157
3158 /*------------------------------------------------------------------*/
3159 /*
3160  * Initialise the transmit blocks.
3161  * Start the command unit executing the NOP
3162  * self-loop of the first transmit block.
3163  *
3164  * Here we create the list of send buffers used to transmit packets
3165  * between the PC and the command unit. For each buffer, we create a
3166  * buffer descriptor (pointing on the buffer), a transmit command
3167  * (pointing to the buffer descriptor) and a NOP command.
3168  * The transmit command is linked to the NOP, and the NOP to itself.
3169  * When we will have finished executing the transmit command, we will
3170  * then loop on the NOP. By releasing the NOP link to a new command,
3171  * we may send another buffer.
3172  *
3173  * (called by wv_hw_reset())
3174  */
3175 static int wv_cu_start(struct net_device * dev)
3176 {
3177         net_local *lp = netdev_priv(dev);
3178         unsigned long ioaddr = dev->base_addr;
3179         int i;
3180         u16 txblock;
3181         u16 first_nop;
3182         u16 scb_cs;
3183
3184 #ifdef DEBUG_CONFIG_TRACE
3185         printk(KERN_DEBUG "%s: ->wv_cu_start()\n", dev->name);
3186 #endif
3187
3188         lp->tx_first_free = OFFSET_CU;
3189         lp->tx_first_in_use = I82586NULL;
3190
3191         for (i = 0, txblock = OFFSET_CU;
3192              i < NTXBLOCKS; i++, txblock += TXBLOCKZ) {
3193                 ac_tx_t tx;
3194                 ac_nop_t nop;
3195                 tbd_t tbd;
3196                 unsigned short tx_addr;
3197                 unsigned short nop_addr;
3198                 unsigned short tbd_addr;
3199                 unsigned short buf_addr;
3200
3201                 tx_addr = txblock;
3202                 nop_addr = tx_addr + sizeof(tx);
3203                 tbd_addr = nop_addr + sizeof(nop);
3204                 buf_addr = tbd_addr + sizeof(tbd);
3205
3206                 tx.tx_h.ac_status = 0;
3207                 tx.tx_h.ac_command = acmd_transmit | AC_CFLD_I;
3208                 tx.tx_h.ac_link = nop_addr;
3209                 tx.tx_tbd_offset = tbd_addr;
3210                 obram_write(ioaddr, tx_addr, (unsigned char *) &tx,
3211                             sizeof(tx));
3212
3213                 nop.nop_h.ac_status = 0;
3214                 nop.nop_h.ac_command = acmd_nop;
3215                 nop.nop_h.ac_link = nop_addr;
3216                 obram_write(ioaddr, nop_addr, (unsigned char *) &nop,
3217                             sizeof(nop));
3218
3219                 tbd.tbd_status = TBD_STATUS_EOF;
3220                 tbd.tbd_next_bd_offset = I82586NULL;
3221                 tbd.tbd_bufl = buf_addr;
3222                 tbd.tbd_bufh = 0;
3223                 obram_write(ioaddr, tbd_addr, (unsigned char *) &tbd,
3224                             sizeof(tbd));
3225         }
3226
3227         first_nop =
3228             OFFSET_CU + (NTXBLOCKS - 1) * TXBLOCKZ + sizeof(ac_tx_t);
3229         obram_write(ioaddr, scboff(OFFSET_SCB, scb_cbl_offset),
3230                     (unsigned char *) &first_nop, sizeof(first_nop));
3231
3232         scb_cs = SCB_CMD_CUC_GO;
3233         obram_write(ioaddr, scboff(OFFSET_SCB, scb_command),
3234                     (unsigned char *) &scb_cs, sizeof(scb_cs));
3235
3236         set_chan_attn(ioaddr, lp->hacr);
3237
3238         for (i = 1000; i > 0; i--) {
3239                 obram_read(ioaddr, scboff(OFFSET_SCB, scb_command),
3240                            (unsigned char *) &scb_cs, sizeof(scb_cs));
3241                 if (scb_cs == 0)
3242                         break;
3243
3244                 udelay(10);
3245         }
3246
3247         if (i <= 0) {
3248 #ifdef DEBUG_CONFIG_ERROR
3249                 printk(KERN_INFO
3250                        "%s: wavelan_cu_start(): board not accepting command.\n",
3251                        dev->name);
3252 #endif
3253                 return -1;
3254         }
3255
3256         lp->tx_n_in_use = 0;
3257         netif_start_queue(dev);
3258 #ifdef DEBUG_CONFIG_TRACE
3259         printk(KERN_DEBUG "%s: <-wv_cu_start()\n", dev->name);
3260 #endif
3261         return 0;
3262 }
3263
3264 /*------------------------------------------------------------------*/
3265 /*
3266  * This routine does a standard configuration of the WaveLAN
3267  * controller (i82586).
3268  *
3269  * It initialises the scp, iscp and scb structure
3270  * The first two are just pointers to the next.
3271  * The last one is used for basic configuration and for basic
3272  * communication (interrupt status).
3273  *
3274  * (called by wv_hw_reset())
3275  */
3276 static int wv_82586_start(struct net_device * dev)
3277 {
3278         net_local *lp = netdev_priv(dev);
3279         unsigned long ioaddr = dev->base_addr;
3280         scp_t scp;              /* system configuration pointer */
3281         iscp_t iscp;            /* intermediate scp */
3282         scb_t scb;              /* system control block */
3283         ach_t cb;               /* Action command header */
3284         u8 zeroes[512];
3285         int i;
3286
3287 #ifdef DEBUG_CONFIG_TRACE
3288         printk(KERN_DEBUG "%s: ->wv_82586_start()\n", dev->name);
3289 #endif
3290
3291         /*
3292          * Clear the onboard RAM.
3293          */
3294         memset(&zeroes[0], 0x00, sizeof(zeroes));
3295         for (i = 0; i < I82586_MEMZ; i += sizeof(zeroes))
3296                 obram_write(ioaddr, i, &zeroes[0], sizeof(zeroes));
3297
3298         /*
3299          * Construct the command unit structures:
3300          * scp, iscp, scb, cb.
3301          */
3302         memset(&scp, 0x00, sizeof(scp));
3303         scp.scp_sysbus = SCP_SY_16BBUS;
3304         scp.scp_iscpl = OFFSET_ISCP;
3305         obram_write(ioaddr, OFFSET_SCP, (unsigned char *) &scp,
3306                     sizeof(scp));
3307
3308         memset(&iscp, 0x00, sizeof(iscp));
3309         iscp.iscp_busy = 1;
3310         iscp.iscp_offset = OFFSET_SCB;
3311         obram_write(ioaddr, OFFSET_ISCP, (unsigned char *) &iscp,
3312                     sizeof(iscp));
3313
3314         /* Our first command is to reset the i82586. */
3315         memset(&scb, 0x00, sizeof(scb));
3316         scb.scb_command = SCB_CMD_RESET;
3317         scb.scb_cbl_offset = OFFSET_CU;
3318         scb.scb_rfa_offset = OFFSET_RU;
3319         obram_write(ioaddr, OFFSET_SCB, (unsigned char *) &scb,
3320                     sizeof(scb));
3321
3322         set_chan_attn(ioaddr, lp->hacr);
3323
3324         /* Wait for command to finish. */
3325         for (i = 1000; i > 0; i--) {
3326                 obram_read(ioaddr, OFFSET_ISCP, (unsigned char *) &iscp,
3327                            sizeof(iscp));
3328
3329                 if (iscp.iscp_busy == (unsigned short) 0)
3330                         break;
3331
3332                 udelay(10);
3333         }
3334
3335         if (i <= 0) {
3336 #ifdef DEBUG_CONFIG_ERROR
3337                 printk(KERN_INFO
3338                        "%s: wv_82586_start(): iscp_busy timeout.\n",
3339                        dev->name);
3340 #endif
3341                 return -1;
3342         }
3343
3344         /* Check command completion. */
3345         for (i = 15; i > 0; i--) {
3346                 obram_read(ioaddr, OFFSET_SCB, (unsigned char *) &scb,
3347                            sizeof(scb));
3348
3349                 if (scb.scb_status == (SCB_ST_CX | SCB_ST_CNA))
3350                         break;
3351
3352                 udelay(10);
3353         }
3354
3355         if (i <= 0) {
3356 #ifdef DEBUG_CONFIG_ERROR
3357                 printk(KERN_INFO
3358                        "%s: wv_82586_start(): status: expected 0x%02x, got 0x%02x.\n",
3359                        dev->name, SCB_ST_CX | SCB_ST_CNA, scb.scb_status);
3360 #endif
3361                 return -1;
3362         }
3363
3364         wv_ack(dev);
3365
3366         /* Set the action command header. */
3367         memset(&cb, 0x00, sizeof(cb));
3368         cb.ac_command = AC_CFLD_EL | (AC_CFLD_CMD & acmd_diagnose);
3369         cb.ac_link = OFFSET_CU;
3370         obram_write(ioaddr, OFFSET_CU, (unsigned char *) &cb, sizeof(cb));
3371
3372         if (wv_synchronous_cmd(dev, "diag()") == -1)
3373                 return -1;
3374
3375         obram_read(ioaddr, OFFSET_CU, (unsigned char *) &cb, sizeof(cb));
3376         if (cb.ac_status & AC_SFLD_FAIL) {
3377 #ifdef DEBUG_CONFIG_ERROR
3378                 printk(KERN_INFO
3379                        "%s: wv_82586_start(): i82586 Self Test failed.\n",
3380                        dev->name);
3381 #endif
3382                 return -1;
3383         }
3384 #ifdef DEBUG_I82586_SHOW
3385         wv_scb_show(ioaddr);
3386 #endif
3387
3388 #ifdef DEBUG_CONFIG_TRACE
3389         printk(KERN_DEBUG "%s: <-wv_82586_start()\n", dev->name);
3390 #endif
3391         return 0;
3392 }
3393
3394 /*------------------------------------------------------------------*/
3395 /*
3396  * This routine does a standard configuration of the WaveLAN
3397  * controller (i82586).
3398  *
3399  * This routine is a violent hack. We use the first free transmit block
3400  * to make our configuration. In the buffer area, we create the three
3401  * configuration commands (linked). We make the previous NOP point to
3402  * the beginning of the buffer instead of the tx command. After, we go
3403  * as usual to the NOP command.
3404  * Note that only the last command (mc_set) will generate an interrupt.
3405  *
3406  * (called by wv_hw_reset(), wv_82586_reconfig(), wavelan_packet_xmit())
3407  */
3408 static void wv_82586_config(struct net_device * dev)
3409 {
3410         net_local *lp = netdev_priv(dev);
3411         unsigned long ioaddr = dev->base_addr;
3412         unsigned short txblock;
3413         unsigned short txpred;
3414         unsigned short tx_addr;
3415         unsigned short nop_addr;
3416         unsigned short tbd_addr;
3417         unsigned short cfg_addr;
3418         unsigned short ias_addr;
3419         unsigned short mcs_addr;
3420         ac_tx_t tx;
3421         ac_nop_t nop;
3422         ac_cfg_t cfg;           /* Configure action */
3423         ac_ias_t ias;           /* IA-setup action */
3424         ac_mcs_t mcs;           /* Multicast setup */
3425         struct dev_mc_list *dmi;
3426
3427 #ifdef DEBUG_CONFIG_TRACE
3428         printk(KERN_DEBUG "%s: ->wv_82586_config()\n", dev->name);
3429 #endif
3430
3431         /* Check nothing bad has happened */
3432         if (lp->tx_n_in_use == (NTXBLOCKS - 1)) {
3433 #ifdef DEBUG_CONFIG_ERROR
3434                 printk(KERN_INFO "%s: wv_82586_config(): Tx queue full.\n",
3435                        dev->name);
3436 #endif
3437                 return;
3438         }
3439
3440         /* Calculate addresses of next block and previous block. */
3441         txblock = lp->tx_first_free;
3442         txpred = txblock - TXBLOCKZ;
3443         if (txpred < OFFSET_CU)
3444                 txpred += NTXBLOCKS * TXBLOCKZ;
3445         lp->tx_first_free += TXBLOCKZ;
3446         if (lp->tx_first_free >= OFFSET_CU + NTXBLOCKS * TXBLOCKZ)
3447                 lp->tx_first_free -= NTXBLOCKS * TXBLOCKZ;
3448
3449         lp->tx_n_in_use++;
3450
3451         /* Calculate addresses of the different parts of the block. */
3452         tx_addr = txblock;
3453         nop_addr = tx_addr + sizeof(tx);
3454         tbd_addr = nop_addr + sizeof(nop);
3455         cfg_addr = tbd_addr + sizeof(tbd_t);    /* beginning of the buffer */
3456         ias_addr = cfg_addr + sizeof(cfg);
3457         mcs_addr = ias_addr + sizeof(ias);
3458
3459         /*
3460          * Transmit command
3461          */
3462         tx.tx_h.ac_status = 0xFFFF;     /* Fake completion value */
3463         obram_write(ioaddr, toff(ac_tx_t, tx_addr, tx_h.ac_status),
3464                     (unsigned char *) &tx.tx_h.ac_status,
3465                     sizeof(tx.tx_h.ac_status));
3466
3467         /*
3468          * NOP command
3469          */
3470         nop.nop_h.ac_status = 0;
3471         obram_write(ioaddr, toff(ac_nop_t, nop_addr, nop_h.ac_status),
3472                     (unsigned char *) &nop.nop_h.ac_status,
3473                     sizeof(nop.nop_h.ac_status));
3474         nop.nop_h.ac_link = nop_addr;
3475         obram_write(ioaddr, toff(ac_nop_t, nop_addr, nop_h.ac_link),
3476                     (unsigned char *) &nop.nop_h.ac_link,
3477                     sizeof(nop.nop_h.ac_link));
3478
3479         /* Create a configure action. */
3480         memset(&cfg, 0x00, sizeof(cfg));
3481
3482         /*
3483          * For Linux we invert AC_CFG_ALOC() so as to conform
3484          * to the way that net packets reach us from above.
3485          * (See also ac_tx_t.)
3486          *
3487          * Updated from Wavelan Manual WCIN085B
3488          */
3489         cfg.cfg_byte_cnt =
3490             AC_CFG_BYTE_CNT(sizeof(ac_cfg_t) - sizeof(ach_t));
3491         cfg.cfg_fifolim = AC_CFG_FIFOLIM(4);
3492         cfg.cfg_byte8 = AC_CFG_SAV_BF(1) | AC_CFG_SRDY(0);
3493         cfg.cfg_byte9 = AC_CFG_ELPBCK(0) |
3494             AC_CFG_ILPBCK(0) |
3495             AC_CFG_PRELEN(AC_CFG_PLEN_2) |
3496             AC_CFG_ALOC(1) | AC_CFG_ADDRLEN(WAVELAN_ADDR_SIZE);
3497         cfg.cfg_byte10 = AC_CFG_BOFMET(1) |
3498             AC_CFG_ACR(6) | AC_CFG_LINPRIO(0);
3499         cfg.cfg_ifs = 0x20;
3500         cfg.cfg_slotl = 0x0C;
3501         cfg.cfg_byte13 = AC_CFG_RETRYNUM(15) | AC_CFG_SLTTMHI(0);
3502         cfg.cfg_byte14 = AC_CFG_FLGPAD(0) |
3503             AC_CFG_BTSTF(0) |
3504             AC_CFG_CRC16(0) |
3505             AC_CFG_NCRC(0) |
3506             AC_CFG_TNCRS(1) |
3507             AC_CFG_MANCH(0) |
3508             AC_CFG_BCDIS(0) | AC_CFG_PRM(lp->promiscuous);
3509         cfg.cfg_byte15 = AC_CFG_ICDS(0) |
3510             AC_CFG_CDTF(0) | AC_CFG_ICSS(0) | AC_CFG_CSTF(0);
3511 /*
3512   cfg.cfg_min_frm_len = AC_CFG_MNFRM(64);
3513 */
3514         cfg.cfg_min_frm_len = AC_CFG_MNFRM(8);
3515
3516         cfg.cfg_h.ac_command = (AC_CFLD_CMD & acmd_configure);
3517         cfg.cfg_h.ac_link = ias_addr;
3518         obram_write(ioaddr, cfg_addr, (unsigned char *) &cfg, sizeof(cfg));
3519
3520         /* Set up the MAC address */
3521         memset(&ias, 0x00, sizeof(ias));
3522         ias.ias_h.ac_command = (AC_CFLD_CMD & acmd_ia_setup);
3523         ias.ias_h.ac_link = mcs_addr;
3524         memcpy(&ias.ias_addr[0], (unsigned char *) &dev->dev_addr[0],
3525                sizeof(ias.ias_addr));
3526         obram_write(ioaddr, ias_addr, (unsigned char *) &ias, sizeof(ias));
3527
3528         /* Initialize adapter's Ethernet multicast addresses */
3529         memset(&mcs, 0x00, sizeof(mcs));
3530         mcs.mcs_h.ac_command = AC_CFLD_I | (AC_CFLD_CMD & acmd_mc_setup);
3531         mcs.mcs_h.ac_link = nop_addr;
3532         mcs.mcs_cnt = WAVELAN_ADDR_SIZE * lp->mc_count;
3533         obram_write(ioaddr, mcs_addr, (unsigned char *) &mcs, sizeof(mcs));
3534
3535         /* Any address to set? */
3536         if (lp->mc_count) {
3537                 for (dmi = dev->mc_list; dmi; dmi = dmi->next)
3538                         outsw(PIOP1(ioaddr), (u16 *) dmi->dmi_addr,
3539                               WAVELAN_ADDR_SIZE >> 1);
3540
3541 #ifdef DEBUG_CONFIG_INFO
3542                 printk(KERN_DEBUG
3543                        "%s: wv_82586_config(): set %d multicast addresses:\n",
3544                        dev->name, lp->mc_count);
3545                 for (dmi = dev->mc_list; dmi; dmi = dmi->next)
3546                         printk(KERN_DEBUG " %pM\n", dmi->dmi_addr);
3547 #endif
3548         }
3549
3550         /*
3551          * Overwrite the predecessor NOP link
3552          * so that it points to the configure action.
3553          */
3554         nop_addr = txpred + sizeof(tx);
3555         nop.nop_h.ac_status = 0;
3556         obram_write(ioaddr, toff(ac_nop_t, nop_addr, nop_h.ac_status),
3557                     (unsigned char *) &nop.nop_h.ac_status,
3558                     sizeof(nop.nop_h.ac_status));
3559         nop.nop_h.ac_link = cfg_addr;
3560         obram_write(ioaddr, toff(ac_nop_t, nop_addr, nop_h.ac_link),
3561                     (unsigned char *) &nop.nop_h.ac_link,
3562                     sizeof(nop.nop_h.ac_link));
3563
3564         /* Job done, clear the flag */
3565         lp->reconfig_82586 = 0;
3566
3567         if (lp->tx_first_in_use == I82586NULL)
3568                 lp->tx_first_in_use = txblock;
3569
3570         if (lp->tx_n_in_use == (NTXBLOCKS - 1))
3571                 netif_stop_queue(dev);
3572
3573 #ifdef DEBUG_CONFIG_TRACE
3574         printk(KERN_DEBUG "%s: <-wv_82586_config()\n", dev->name);
3575 #endif
3576 }
3577
3578 /*------------------------------------------------------------------*/
3579 /*
3580  * This routine, called by wavelan_close(), gracefully stops the
3581  * WaveLAN controller (i82586).
3582  * (called by wavelan_close())
3583  */
3584 static void wv_82586_stop(struct net_device * dev)
3585 {
3586         net_local *lp = netdev_priv(dev);
3587         unsigned long ioaddr = dev->base_addr;
3588         u16 scb_cmd;
3589
3590 #ifdef DEBUG_CONFIG_TRACE
3591         printk(KERN_DEBUG "%s: ->wv_82586_stop()\n", dev->name);
3592 #endif
3593
3594         /* Suspend both command unit and receive unit. */
3595         scb_cmd =
3596             (SCB_CMD_CUC & SCB_CMD_CUC_SUS) | (SCB_CMD_RUC &
3597                                                SCB_CMD_RUC_SUS);
3598         obram_write(ioaddr, scboff(OFFSET_SCB, scb_command),
3599                     (unsigned char *) &scb_cmd, sizeof(scb_cmd));
3600         set_chan_attn(ioaddr, lp->hacr);
3601
3602         /* No more interrupts */
3603         wv_ints_off(dev);
3604
3605 #ifdef DEBUG_CONFIG_TRACE
3606         printk(KERN_DEBUG "%s: <-wv_82586_stop()\n", dev->name);
3607 #endif
3608 }
3609
3610 /*------------------------------------------------------------------*/
3611 /*
3612  * Totally reset the WaveLAN and restart it.
3613  * Performs the following actions:
3614  *      1. A power reset (reset DMA)
3615  *      2. Initialize the radio modem (using wv_mmc_init)
3616  *      3. Reset & Configure LAN controller (using wv_82586_start)
3617  *      4. Start the LAN controller's command unit
3618  *      5. Start the LAN controller's receive unit
3619  * (called by wavelan_interrupt(), wavelan_watchdog() & wavelan_open())
3620  */
3621 static int wv_hw_reset(struct net_device * dev)
3622 {
3623         net_local *lp = netdev_priv(dev);
3624         unsigned long ioaddr = dev->base_addr;
3625
3626 #ifdef DEBUG_CONFIG_TRACE
3627         printk(KERN_DEBUG "%s: ->wv_hw_reset(dev=0x%x)\n", dev->name,
3628                (unsigned int) dev);
3629 #endif
3630
3631         /* Increase the number of resets done. */
3632         lp->nresets++;
3633
3634         wv_hacr_reset(ioaddr);
3635         lp->hacr = HACR_DEFAULT;
3636
3637         if ((wv_mmc_init(dev) < 0) || (wv_82586_start(dev) < 0))
3638                 return -1;
3639
3640         /* Enable the card to send interrupts. */
3641         wv_ints_on(dev);
3642
3643         /* Start card functions */
3644         if (wv_cu_start(dev) < 0)
3645                 return -1;
3646
3647         /* Setup the controller and parameters */
3648         wv_82586_config(dev);
3649
3650         /* Finish configuration with the receive unit */
3651         if (wv_ru_start(dev) < 0)
3652                 return -1;
3653
3654 #ifdef DEBUG_CONFIG_TRACE
3655         printk(KERN_DEBUG "%s: <-wv_hw_reset()\n", dev->name);
3656 #endif
3657         return 0;
3658 }
3659
3660 /*------------------------------------------------------------------*/
3661 /*
3662  * Check if there is a WaveLAN at the specific base address.
3663  * As a side effect, this reads the MAC address.
3664  * (called in wavelan_probe() and init_module())
3665  */
3666 static int wv_check_ioaddr(unsigned long ioaddr, u8 * mac)
3667 {
3668         int i;                  /* Loop counter */
3669
3670         /* Check if the base address if available. */
3671         if (!request_region(ioaddr, sizeof(ha_t), "wavelan probe"))
3672                 return -EBUSY;          /* ioaddr already used */
3673
3674         /* Reset host interface */
3675         wv_hacr_reset(ioaddr);
3676
3677         /* Read the MAC address from the parameter storage area. */
3678         psa_read(ioaddr, HACR_DEFAULT, psaoff(0, psa_univ_mac_addr),
3679                  mac, 6);
3680
3681         release_region(ioaddr, sizeof(ha_t));
3682
3683         /*
3684          * Check the first three octets of the address for the manufacturer's code.
3685          * Note: if this can't find your WaveLAN card, you've got a
3686          * non-NCR/AT&T/Lucent ISA card.  See wavelan.p.h for detail on
3687          * how to configure your card.
3688          */
3689         for (i = 0; i < ARRAY_SIZE(MAC_ADDRESSES); i++)
3690                 if ((mac[0] == MAC_ADDRESSES[i][0]) &&
3691                     (mac[1] == MAC_ADDRESSES[i][1]) &&
3692                     (mac[2] == MAC_ADDRESSES[i][2]))
3693                         return 0;
3694
3695 #ifdef DEBUG_CONFIG_INFO
3696         printk(KERN_WARNING
3697                "WaveLAN (0x%3X): your MAC address might be %02X:%02X:%02X.\n",
3698                ioaddr, mac[0], mac[1], mac[2]);
3699 #endif
3700         return -ENODEV;
3701 }
3702
3703 /************************ INTERRUPT HANDLING ************************/
3704
3705 /*
3706  * This function is the interrupt handler for the WaveLAN card. This
3707  * routine will be called whenever:
3708  */
3709 static irqreturn_t wavelan_interrupt(int irq, void *dev_id)
3710 {
3711         struct net_device *dev;
3712         unsigned long ioaddr;
3713         net_local *lp;
3714         u16 hasr;
3715         u16 status;
3716         u16 ack_cmd;
3717
3718         dev = dev_id;
3719
3720 #ifdef DEBUG_INTERRUPT_TRACE
3721         printk(KERN_DEBUG "%s: ->wavelan_interrupt()\n", dev->name);
3722 #endif
3723
3724         lp = netdev_priv(dev);
3725         ioaddr = dev->base_addr;
3726
3727 #ifdef DEBUG_INTERRUPT_INFO
3728         /* Check state of our spinlock */
3729         if(spin_is_locked(&lp->spinlock))
3730                 printk(KERN_DEBUG
3731                        "%s: wavelan_interrupt(): spinlock is already locked !!!\n",
3732                        dev->name);
3733 #endif
3734
3735         /* Prevent reentrancy. We need to do that because we may have
3736          * multiple interrupt handler running concurrently.
3737          * It is safe because interrupts are disabled before acquiring
3738          * the spinlock. */
3739         spin_lock(&lp->spinlock);
3740
3741         /* We always had spurious interrupts at startup, but lately I
3742          * saw them comming *between* the request_irq() and the
3743          * spin_lock_irqsave() in wavelan_open(), so the spinlock
3744          * protection is no enough.
3745          * So, we also check lp->hacr that will tell us is we enabled
3746          * irqs or not (see wv_ints_on()).
3747          * We can't use netif_running(dev) because we depend on the
3748          * proper processing of the irq generated during the config. */
3749
3750         /* Which interrupt it is ? */
3751         hasr = hasr_read(ioaddr);
3752
3753 #ifdef DEBUG_INTERRUPT_INFO
3754         printk(KERN_INFO
3755                "%s: wavelan_interrupt(): hasr 0x%04x; hacr 0x%04x.\n",
3756                dev->name, hasr, lp->hacr);
3757 #endif
3758
3759         /* Check modem interrupt */
3760         if ((hasr & HASR_MMC_INTR) && (lp->hacr & HACR_MMC_INT_ENABLE)) {
3761                 u8 dce_status;
3762
3763                 /*
3764                  * Interrupt from the modem management controller.
3765                  * This will clear it -- ignored for now.
3766                  */
3767                 mmc_read(ioaddr, mmroff(0, mmr_dce_status), &dce_status,
3768                          sizeof(dce_status));
3769
3770 #ifdef DEBUG_INTERRUPT_ERROR
3771                 printk(KERN_INFO
3772                        "%s: wavelan_interrupt(): unexpected mmc interrupt: status 0x%04x.\n",
3773                        dev->name, dce_status);
3774 #endif
3775         }
3776
3777         /* Check if not controller interrupt */
3778         if (((hasr & HASR_82586_INTR) == 0) ||
3779             ((lp->hacr & HACR_82586_INT_ENABLE) == 0)) {
3780 #ifdef DEBUG_INTERRUPT_ERROR
3781                 printk(KERN_INFO
3782                        "%s: wavelan_interrupt(): interrupt not coming from i82586 - hasr 0x%04x.\n",
3783                        dev->name, hasr);
3784 #endif
3785                 spin_unlock (&lp->spinlock);
3786                 return IRQ_NONE;
3787         }
3788
3789         /* Read interrupt data. */
3790         obram_read(ioaddr, scboff(OFFSET_SCB, scb_status),
3791                    (unsigned char *) &status, sizeof(status));
3792
3793         /*
3794          * Acknowledge the interrupt(s).
3795          */
3796         ack_cmd = status & SCB_ST_INT;
3797         obram_write(ioaddr, scboff(OFFSET_SCB, scb_command),
3798                     (unsigned char *) &ack_cmd, sizeof(ack_cmd));
3799         set_chan_attn(ioaddr, lp->hacr);
3800
3801 #ifdef DEBUG_INTERRUPT_INFO
3802         printk(KERN_DEBUG "%s: wavelan_interrupt(): status 0x%04x.\n",
3803                dev->name, status);
3804 #endif
3805
3806         /* Command completed. */
3807         if ((status & SCB_ST_CX) == SCB_ST_CX) {
3808 #ifdef DEBUG_INTERRUPT_INFO
3809                 printk(KERN_DEBUG
3810                        "%s: wavelan_interrupt(): command completed.\n",
3811                        dev->name);
3812 #endif
3813                 wv_complete(dev, ioaddr, lp);
3814         }
3815
3816         /* Frame received. */
3817         if ((status & SCB_ST_FR) == SCB_ST_FR) {
3818 #ifdef DEBUG_INTERRUPT_INFO
3819                 printk(KERN_DEBUG
3820                        "%s: wavelan_interrupt(): received packet.\n",
3821                        dev->name);
3822 #endif
3823                 wv_receive(dev);
3824         }
3825
3826         /* Check the state of the command unit. */
3827         if (((status & SCB_ST_CNA) == SCB_ST_CNA) ||
3828             (((status & SCB_ST_CUS) != SCB_ST_CUS_ACTV) &&
3829              (netif_running(dev)))) {
3830 #ifdef DEBUG_INTERRUPT_ERROR
3831                 printk(KERN_INFO
3832                        "%s: wavelan_interrupt(): CU inactive -- restarting\n",
3833                        dev->name);
3834 #endif
3835                 wv_hw_reset(dev);
3836         }
3837
3838         /* Check the state of the command unit. */
3839         if (((status & SCB_ST_RNR) == SCB_ST_RNR) ||
3840             (((status & SCB_ST_RUS) != SCB_ST_RUS_RDY) &&
3841              (netif_running(dev)))) {
3842 #ifdef DEBUG_INTERRUPT_ERROR
3843                 printk(KERN_INFO
3844                        "%s: wavelan_interrupt(): RU not ready -- restarting\n",
3845                        dev->name);
3846 #endif
3847                 wv_hw_reset(dev);
3848         }
3849
3850         /* Release spinlock */
3851         spin_unlock (&lp->spinlock);
3852
3853 #ifdef DEBUG_INTERRUPT_TRACE
3854         printk(KERN_DEBUG "%s: <-wavelan_interrupt()\n", dev->name);
3855 #endif
3856         return IRQ_HANDLED;
3857 }
3858
3859 /*------------------------------------------------------------------*/
3860 /*
3861  * Watchdog: when we start a transmission, a timer is set for us in the
3862  * kernel.  If the transmission completes, this timer is disabled. If
3863  * the timer expires, we are called and we try to unlock the hardware.
3864  */
3865 static void wavelan_watchdog(struct net_device *        dev)
3866 {
3867         net_local *lp = netdev_priv(dev);
3868         u_long          ioaddr = dev->base_addr;
3869         unsigned long   flags;
3870         unsigned int    nreaped;
3871
3872 #ifdef DEBUG_INTERRUPT_TRACE
3873         printk(KERN_DEBUG "%s: ->wavelan_watchdog()\n", dev->name);
3874 #endif
3875
3876 #ifdef DEBUG_INTERRUPT_ERROR
3877         printk(KERN_INFO "%s: wavelan_watchdog: watchdog timer expired\n",
3878                dev->name);
3879 #endif
3880
3881         /* Check that we came here for something */
3882         if (lp->tx_n_in_use <= 0) {
3883                 return;
3884         }
3885
3886         spin_lock_irqsave(&lp->spinlock, flags);
3887
3888         /* Try to see if some buffers are not free (in case we missed
3889          * an interrupt */
3890         nreaped = wv_complete(dev, ioaddr, lp);
3891
3892 #ifdef DEBUG_INTERRUPT_INFO
3893         printk(KERN_DEBUG
3894                "%s: wavelan_watchdog(): %d reaped, %d remain.\n",
3895                dev->name, nreaped, lp->tx_n_in_use);
3896 #endif
3897
3898 #ifdef DEBUG_PSA_SHOW
3899         {
3900                 psa_t psa;
3901                 psa_read(dev, 0, (unsigned char *) &psa, sizeof(psa));
3902                 wv_psa_show(&psa);
3903         }
3904 #endif
3905 #ifdef DEBUG_MMC_SHOW
3906         wv_mmc_show(dev);
3907 #endif
3908 #ifdef DEBUG_I82586_SHOW
3909         wv_cu_show(dev);
3910 #endif
3911
3912         /* If no buffer has been freed */
3913         if (nreaped == 0) {
3914 #ifdef DEBUG_INTERRUPT_ERROR
3915                 printk(KERN_INFO
3916                        "%s: wavelan_watchdog(): cleanup failed, trying reset\n",
3917                        dev->name);
3918 #endif
3919                 wv_hw_reset(dev);
3920         }
3921
3922         /* At this point, we should have some free Tx buffer ;-) */
3923         if (lp->tx_n_in_use < NTXBLOCKS - 1)
3924                 netif_wake_queue(dev);
3925
3926         spin_unlock_irqrestore(&lp->spinlock, flags);
3927
3928 #ifdef DEBUG_INTERRUPT_TRACE
3929         printk(KERN_DEBUG "%s: <-wavelan_watchdog()\n", dev->name);
3930 #endif
3931 }
3932
3933 /********************* CONFIGURATION CALLBACKS *********************/
3934 /*
3935  * Here are the functions called by the Linux networking code (NET3)
3936  * for initialization, configuration and deinstallations of the
3937  * WaveLAN ISA hardware.
3938  */
3939
3940 /*------------------------------------------------------------------*/
3941 /*
3942  * Configure and start up the WaveLAN PCMCIA adaptor.
3943  * Called by NET3 when it "opens" the device.
3944  */
3945 static int wavelan_open(struct net_device * dev)
3946 {
3947         net_local *lp = netdev_priv(dev);
3948         unsigned long   flags;
3949
3950 #ifdef DEBUG_CALLBACK_TRACE
3951         printk(KERN_DEBUG "%s: ->wavelan_open(dev=0x%x)\n", dev->name,
3952                (unsigned int) dev);
3953 #endif
3954
3955         /* Check irq */
3956         if (dev->irq == 0) {
3957 #ifdef DEBUG_CONFIG_ERROR
3958                 printk(KERN_WARNING "%s: wavelan_open(): no IRQ\n",
3959                        dev->name);
3960 #endif
3961                 return -ENXIO;
3962         }
3963
3964         if (request_irq(dev->irq, &wavelan_interrupt, 0, "WaveLAN", dev) != 0)
3965         {
3966 #ifdef DEBUG_CONFIG_ERROR
3967                 printk(KERN_WARNING "%s: wavelan_open(): invalid IRQ\n",
3968                        dev->name);
3969 #endif
3970                 return -EAGAIN;
3971         }
3972
3973         spin_lock_irqsave(&lp->spinlock, flags);
3974
3975         if (wv_hw_reset(dev) != -1) {
3976                 netif_start_queue(dev);
3977         } else {
3978                 free_irq(dev->irq, dev);
3979 #ifdef DEBUG_CONFIG_ERROR
3980                 printk(KERN_INFO
3981                        "%s: wavelan_open(): impossible to start the card\n",
3982                        dev->name);
3983 #endif
3984                 spin_unlock_irqrestore(&lp->spinlock, flags);
3985                 return -EAGAIN;
3986         }
3987         spin_unlock_irqrestore(&lp->spinlock, flags);
3988
3989 #ifdef DEBUG_CALLBACK_TRACE
3990         printk(KERN_DEBUG "%s: <-wavelan_open()\n", dev->name);
3991 #endif
3992         return 0;
3993 }
3994
3995 /*------------------------------------------------------------------*/
3996 /*
3997  * Shut down the WaveLAN ISA card.
3998  * Called by NET3 when it "closes" the device.
3999  */
4000 static int wavelan_close(struct net_device * dev)
4001 {
4002         net_local *lp = netdev_priv(dev);
4003         unsigned long flags;
4004
4005 #ifdef DEBUG_CALLBACK_TRACE
4006         printk(KERN_DEBUG "%s: ->wavelan_close(dev=0x%x)\n", dev->name,
4007                (unsigned int) dev);
4008 #endif
4009
4010         netif_stop_queue(dev);
4011
4012         /*
4013          * Flush the Tx and disable Rx.
4014          */
4015         spin_lock_irqsave(&lp->spinlock, flags);
4016         wv_82586_stop(dev);
4017         spin_unlock_irqrestore(&lp->spinlock, flags);
4018
4019         free_irq(dev->irq, dev);
4020
4021 #ifdef DEBUG_CALLBACK_TRACE
4022         printk(KERN_DEBUG "%s: <-wavelan_close()\n", dev->name);
4023 #endif
4024         return 0;
4025 }
4026
4027 static const struct net_device_ops wavelan_netdev_ops = {
4028         .ndo_open               = wavelan_open,
4029         .ndo_stop               = wavelan_close,
4030         .ndo_start_xmit         = wavelan_packet_xmit,
4031         .ndo_set_multicast_list = wavelan_set_multicast_list,
4032         .ndo_tx_timeout         = wavelan_watchdog,
4033         .ndo_change_mtu         = eth_change_mtu,
4034         .ndo_validate_addr      = eth_validate_addr,
4035 #ifdef SET_MAC_ADDRESS
4036         .ndo_set_mac_address    = wavelan_set_mac_address
4037 #else
4038         .ndo_set_mac_address    = eth_mac_addr,
4039 #endif
4040 };
4041
4042
4043 /*------------------------------------------------------------------*/
4044 /*
4045  * Probe an I/O address, and if the WaveLAN is there configure the
4046  * device structure
4047  * (called by wavelan_probe() and via init_module()).
4048  */
4049 static int __init wavelan_config(struct net_device *dev, unsigned short ioaddr)
4050 {
4051         u8 irq_mask;
4052         int irq;
4053         net_local *lp;
4054         mac_addr mac;
4055         int err;
4056
4057         if (!request_region(ioaddr, sizeof(ha_t), "wavelan"))
4058                 return -EADDRINUSE;
4059
4060         err = wv_check_ioaddr(ioaddr, mac);
4061         if (err)
4062                 goto out;
4063
4064         memcpy(dev->dev_addr, mac, 6);
4065
4066         dev->base_addr = ioaddr;
4067
4068 #ifdef DEBUG_CALLBACK_TRACE
4069         printk(KERN_DEBUG "%s: ->wavelan_config(dev=0x%x, ioaddr=0x%lx)\n",
4070                dev->name, (unsigned int) dev, ioaddr);
4071 #endif
4072
4073         /* Check IRQ argument on command line. */
4074         if (dev->irq != 0) {
4075                 irq_mask = wv_irq_to_psa(dev->irq);
4076
4077                 if (irq_mask == 0) {
4078 #ifdef DEBUG_CONFIG_ERROR
4079                         printk(KERN_WARNING
4080                                "%s: wavelan_config(): invalid IRQ %d ignored.\n",
4081                                dev->name, dev->irq);
4082 #endif
4083                         dev->irq = 0;
4084                 } else {
4085 #ifdef DEBUG_CONFIG_INFO
4086                         printk(KERN_DEBUG
4087                                "%s: wavelan_config(): changing IRQ to %d\n",
4088                                dev->name, dev->irq);
4089 #endif
4090                         psa_write(ioaddr, HACR_DEFAULT,
4091                                   psaoff(0, psa_int_req_no), &irq_mask, 1);
4092                         /* update the Wavelan checksum */
4093                         update_psa_checksum(dev, ioaddr, HACR_DEFAULT);
4094                         wv_hacr_reset(ioaddr);
4095                 }
4096         }
4097
4098         psa_read(ioaddr, HACR_DEFAULT, psaoff(0, psa_int_req_no),
4099                  &irq_mask, 1);
4100         if ((irq = wv_psa_to_irq(irq_mask)) == -1) {
4101 #ifdef DEBUG_CONFIG_ERROR
4102                 printk(KERN_INFO
4103                        "%s: wavelan_config(): could not wavelan_map_irq(%d).\n",
4104                        dev->name, irq_mask);
4105 #endif
4106                 err = -EAGAIN;
4107                 goto out;
4108         }
4109
4110         dev->irq = irq;
4111
4112         dev->mem_start = 0x0000;
4113         dev->mem_end = 0x0000;
4114         dev->if_port = 0;
4115
4116         /* Initialize device structures */
4117         memset(netdev_priv(dev), 0, sizeof(net_local));
4118         lp = netdev_priv(dev);
4119
4120         /* Back link to the device structure. */
4121         lp->dev = dev;
4122         /* Add the device at the beginning of the linked list. */
4123         lp->next = wavelan_list;
4124         wavelan_list = lp;
4125
4126         lp->hacr = HACR_DEFAULT;
4127
4128         /* Multicast stuff */
4129         lp->promiscuous = 0;
4130         lp->mc_count = 0;
4131
4132         /* Init spinlock */
4133         spin_lock_init(&lp->spinlock);
4134
4135         dev->netdev_ops = &wavelan_netdev_ops;
4136         dev->watchdog_timeo = WATCHDOG_JIFFIES;
4137         dev->wireless_handlers = &wavelan_handler_def;
4138         lp->wireless_data.spy_data = &lp->spy_data;
4139         dev->wireless_data = &lp->wireless_data;
4140
4141         dev->mtu = WAVELAN_MTU;
4142
4143         /* Display nice information. */
4144         wv_init_info(dev);
4145
4146 #ifdef DEBUG_CALLBACK_TRACE
4147         printk(KERN_DEBUG "%s: <-wavelan_config()\n", dev->name);
4148 #endif
4149         return 0;
4150 out:
4151         release_region(ioaddr, sizeof(ha_t));
4152         return err;
4153 }
4154
4155 /*------------------------------------------------------------------*/
4156 /*
4157  * Check for a network adaptor of this type.  Return '0' iff one
4158  * exists.  There seem to be different interpretations of
4159  * the initial value of dev->base_addr.
4160  * We follow the example in drivers/net/ne.c.
4161  * (called in "Space.c")
4162  */
4163 struct net_device * __init wavelan_probe(int unit)
4164 {
4165         struct net_device *dev;
4166         short base_addr;
4167         int def_irq;
4168         int i;
4169         int r = 0;
4170
4171         /* compile-time check the sizes of structures */
4172         BUILD_BUG_ON(sizeof(psa_t) != PSA_SIZE);
4173         BUILD_BUG_ON(sizeof(mmw_t) != MMW_SIZE);
4174         BUILD_BUG_ON(sizeof(mmr_t) != MMR_SIZE);
4175         BUILD_BUG_ON(sizeof(ha_t) != HA_SIZE);
4176
4177         dev = alloc_etherdev(sizeof(net_local));
4178         if (!dev)
4179                 return ERR_PTR(-ENOMEM);
4180
4181         sprintf(dev->name, "eth%d", unit);
4182         netdev_boot_setup_check(dev);
4183         base_addr = dev->base_addr;
4184         def_irq = dev->irq;
4185
4186 #ifdef DEBUG_CALLBACK_TRACE
4187         printk(KERN_DEBUG
4188                "%s: ->wavelan_probe(dev=%p (base_addr=0x%x))\n",
4189                dev->name, dev, (unsigned int) dev->base_addr);
4190 #endif
4191
4192         /* Don't probe at all. */
4193         if (base_addr < 0) {
4194 #ifdef DEBUG_CONFIG_ERROR
4195                 printk(KERN_WARNING
4196                        "%s: wavelan_probe(): invalid base address\n",
4197                        dev->name);
4198 #endif
4199                 r = -ENXIO;
4200         } else if (base_addr > 0x100) { /* Check a single specified location. */
4201                 r = wavelan_config(dev, base_addr);
4202 #ifdef DEBUG_CONFIG_INFO
4203                 if (r != 0)
4204                         printk(KERN_DEBUG
4205                                "%s: wavelan_probe(): no device at specified base address (0x%X) or address already in use\n",
4206                                dev->name, base_addr);
4207 #endif
4208
4209 #ifdef DEBUG_CALLBACK_TRACE
4210                 printk(KERN_DEBUG "%s: <-wavelan_probe()\n", dev->name);
4211 #endif
4212         } else { /* Scan all possible addresses of the WaveLAN hardware. */
4213                 for (i = 0; i < ARRAY_SIZE(iobase); i++) {
4214                         dev->irq = def_irq;
4215                         if (wavelan_config(dev, iobase[i]) == 0) {
4216 #ifdef DEBUG_CALLBACK_TRACE
4217                                 printk(KERN_DEBUG
4218                                        "%s: <-wavelan_probe()\n",
4219                                        dev->name);
4220 #endif
4221                                 break;
4222                         }
4223                 }
4224                 if (i == ARRAY_SIZE(iobase))
4225                         r = -ENODEV;
4226         }
4227         if (r)
4228                 goto out;
4229         r = register_netdev(dev);
4230         if (r)
4231                 goto out1;
4232         return dev;
4233 out1:
4234         release_region(dev->base_addr, sizeof(ha_t));
4235         wavelan_list = wavelan_list->next;
4236 out:
4237         free_netdev(dev);
4238         return ERR_PTR(r);
4239 }
4240
4241 /****************************** MODULE ******************************/
4242 /*
4243  * Module entry point: insertion and removal
4244  */
4245
4246 #ifdef  MODULE
4247 /*------------------------------------------------------------------*/
4248 /*
4249  * Insertion of the module
4250  * I'm now quite proud of the multi-device support.
4251  */
4252 int __init init_module(void)
4253 {
4254         int ret = -EIO;         /* Return error if no cards found */
4255         int i;
4256
4257 #ifdef DEBUG_MODULE_TRACE
4258         printk(KERN_DEBUG "-> init_module()\n");
4259 #endif
4260
4261         /* If probing is asked */
4262         if (io[0] == 0) {
4263 #ifdef DEBUG_CONFIG_ERROR
4264                 printk(KERN_WARNING
4265                        "WaveLAN init_module(): doing device probing (bad !)\n");
4266                 printk(KERN_WARNING
4267                        "Specify base addresses while loading module to correct the problem\n");
4268 #endif
4269
4270                 /* Copy the basic set of address to be probed. */
4271                 for (i = 0; i < ARRAY_SIZE(iobase); i++)
4272                         io[i] = iobase[i];
4273         }
4274
4275
4276         /* Loop on all possible base addresses. */
4277         for (i = 0; i < ARRAY_SIZE(io) && io[i] != 0; i++) {
4278                 struct net_device *dev = alloc_etherdev(sizeof(net_local));
4279                 if (!dev)
4280                         break;
4281                 if (name[i])
4282                         strcpy(dev->name, name[i]);     /* Copy name */
4283                 dev->base_addr = io[i];
4284                 dev->irq = irq[i];
4285
4286                 /* Check if there is something at this base address. */
4287                 if (wavelan_config(dev, io[i]) == 0) {
4288                         if (register_netdev(dev) != 0) {
4289                                 release_region(dev->base_addr, sizeof(ha_t));
4290                                 wavelan_list = wavelan_list->next;
4291                         } else {
4292                                 ret = 0;
4293                                 continue;
4294                         }
4295                 }
4296                 free_netdev(dev);
4297         }
4298
4299 #ifdef DEBUG_CONFIG_ERROR
4300         if (!wavelan_list)
4301                 printk(KERN_WARNING
4302                        "WaveLAN init_module(): no device found\n");
4303 #endif
4304
4305 #ifdef DEBUG_MODULE_TRACE
4306         printk(KERN_DEBUG "<- init_module()\n");
4307 #endif
4308         return ret;
4309 }
4310
4311 /*------------------------------------------------------------------*/
4312 /*
4313  * Removal of the module
4314  */
4315 void cleanup_module(void)
4316 {
4317 #ifdef DEBUG_MODULE_TRACE
4318         printk(KERN_DEBUG "-> cleanup_module()\n");
4319 #endif
4320
4321         /* Loop on all devices and release them. */
4322         while (wavelan_list) {
4323                 struct net_device *dev = wavelan_list->dev;
4324
4325 #ifdef DEBUG_CONFIG_INFO
4326                 printk(KERN_DEBUG
4327                        "%s: cleanup_module(): removing device at 0x%x\n",
4328                        dev->name, (unsigned int) dev);
4329 #endif
4330                 unregister_netdev(dev);
4331
4332                 release_region(dev->base_addr, sizeof(ha_t));
4333                 wavelan_list = wavelan_list->next;
4334
4335                 free_netdev(dev);
4336         }
4337
4338 #ifdef DEBUG_MODULE_TRACE
4339         printk(KERN_DEBUG "<- cleanup_module()\n");
4340 #endif
4341 }
4342 #endif                          /* MODULE */
4343 MODULE_LICENSE("GPL");
4344
4345 /*
4346  * This software may only be used and distributed
4347  * according to the terms of the GNU General Public License.
4348  *
4349  * This software was developed as a component of the
4350  * Linux operating system.
4351  * It is based on other device drivers and information
4352  * either written or supplied by:
4353  *      Ajay Bakre (bakre@paul.rutgers.edu),
4354  *      Donald Becker (becker@scyld.com),
4355  *      Loeke Brederveld (Loeke.Brederveld@Utrecht.NCR.com),
4356  *      Anders Klemets (klemets@it.kth.se),
4357  *      Vladimir V. Kolpakov (w@stier.koenig.ru),
4358  *      Marc Meertens (Marc.Meertens@Utrecht.NCR.com),
4359  *      Pauline Middelink (middelin@polyware.iaf.nl),
4360  *      Robert Morris (rtm@das.harvard.edu),
4361  *      Jean Tourrilhes (jt@hplb.hpl.hp.com),
4362  *      Girish Welling (welling@paul.rutgers.edu),
4363  *
4364  * Thanks go also to:
4365  *      James Ashton (jaa101@syseng.anu.edu.au),
4366  *      Alan Cox (alan@lxorguk.ukuu.org.uk),
4367  *      Allan Creighton (allanc@cs.usyd.edu.au),
4368  *      Matthew Geier (matthew@cs.usyd.edu.au),
4369  *      Remo di Giovanni (remo@cs.usyd.edu.au),
4370  *      Eckhard Grah (grah@wrcs1.urz.uni-wuppertal.de),
4371  *      Vipul Gupta (vgupta@cs.binghamton.edu),
4372  *      Mark Hagan (mhagan@wtcpost.daytonoh.NCR.COM),
4373  *      Tim Nicholson (tim@cs.usyd.edu.au),
4374  *      Ian Parkin (ian@cs.usyd.edu.au),
4375  *      John Rosenberg (johnr@cs.usyd.edu.au),
4376  *      George Rossi (george@phm.gov.au),
4377  *      Arthur Scott (arthur@cs.usyd.edu.au),
4378  *      Peter Storey,
4379  * for their assistance and advice.
4380  *
4381  * Please send bug reports, updates, comments to:
4382  *
4383  * Bruce Janson                                    Email:  bruce@cs.usyd.edu.au
4384  * Basser Department of Computer Science           Phone:  +61-2-9351-3423
4385  * University of Sydney, N.S.W., 2006, AUSTRALIA   Fax:    +61-2-9351-3838
4386  */